diff --git a/udfs/flex/bitwise/and.md b/udfs/flex/bitwise/and.md
index 4081a2c..e859f22 100644
--- a/udfs/flex/bitwise/and.md
+++ b/udfs/flex/bitwise/and.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.and
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.and
@@ -63,4 +63,4 @@ RETURN d.id, lowerNibble
 ## See Also
 - [bitwise.or](./or.md) - Bitwise OR operation
 - [bitwise.xor](./xor.md) - Bitwise XOR operation
-- [bitwise.not](./not.md) - Bitwise NOT operation
+- [bitwise.not](./not.md) - Bitwise NOT operation
\ No newline at end of file
diff --git a/udfs/flex/bitwise/index.md b/udfs/flex/bitwise/index.md
new file mode 100644
index 0000000..11c5908
--- /dev/null
+++ b/udfs/flex/bitwise/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Bitwise Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 10
+---
+
+# Bitwise Functions
+
+FLEX bitwise utilities.
\ No newline at end of file
diff --git a/udfs/flex/bitwise/not.md b/udfs/flex/bitwise/not.md
index 77bc203..6667dde 100644
--- a/udfs/flex/bitwise/not.md
+++ b/udfs/flex/bitwise/not.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.not
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.not
@@ -76,4 +76,4 @@ restored
 ## See Also
 - [bitwise.and](./and.md) - Bitwise AND operation
 - [bitwise.or](./or.md) - Bitwise OR operation
-- [bitwise.xor](./xor.md) - Bitwise XOR operation
+- [bitwise.xor](./xor.md) - Bitwise XOR operation
\ No newline at end of file
diff --git a/udfs/flex/bitwise/or.md b/udfs/flex/bitwise/or.md
index 4b57c3d..a3f0f0e 100644
--- a/udfs/flex/bitwise/or.md
+++ b/udfs/flex/bitwise/or.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.or
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.or
@@ -69,4 +69,4 @@ SET u.permissions = flex.bitwise.or(u.permissions, 4)  // Add execute permission
 ## See Also
 - [bitwise.and](./and.md) - Bitwise AND operation
 - [bitwise.xor](./xor.md) - Bitwise XOR operation
-- [bitwise.not](./not.md) - Bitwise NOT operation
+- [bitwise.not](./not.md) - Bitwise NOT operation
\ No newline at end of file
diff --git a/udfs/flex/bitwise/shiftLeft.md b/udfs/flex/bitwise/shiftLeft.md
index b2b89f6..f678582 100644
--- a/udfs/flex/bitwise/shiftLeft.md
+++ b/udfs/flex/bitwise/shiftLeft.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.shiftLeft
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.shiftLeft
@@ -81,4 +81,4 @@ mask
 ## See Also
 - [bitwise.shiftRight](./shiftRight.md) - Shift bits to the right
 - [bitwise.and](./and.md) - Bitwise AND operation
-- [bitwise.or](./or.md) - Bitwise OR operation
+- [bitwise.or](./or.md) - Bitwise OR operation
\ No newline at end of file
diff --git a/udfs/flex/bitwise/shiftRight.md b/udfs/flex/bitwise/shiftRight.md
index 9746497..5aa1399 100644
--- a/udfs/flex/bitwise/shiftRight.md
+++ b/udfs/flex/bitwise/shiftRight.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.shiftRight
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.shiftRight
@@ -96,4 +96,4 @@ upperNibble
 ## See Also
 - [bitwise.shiftLeft](./shiftLeft.md) - Shift bits to the left
 - [bitwise.and](./and.md) - Bitwise AND operation
-- [bitwise.or](./or.md) - Bitwise OR operation
+- [bitwise.or](./or.md) - Bitwise OR operation
\ No newline at end of file
diff --git a/udfs/flex/bitwise/xor.md b/udfs/flex/bitwise/xor.md
index c182856..c33fa2a 100644
--- a/udfs/flex/bitwise/xor.md
+++ b/udfs/flex/bitwise/xor.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: bitwise.xor
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Bitwise Functions
+grand_parent: FLEX Function Reference
 ---
 
 # bitwise.xor
@@ -79,4 +79,4 @@ decrypted
 ## See Also
 - [bitwise.and](./and.md) - Bitwise AND operation
 - [bitwise.or](./or.md) - Bitwise OR operation
-- [bitwise.not](./not.md) - Bitwise NOT operation
+- [bitwise.not](./not.md) - Bitwise NOT operation
\ No newline at end of file
diff --git a/udfs/flex/collections/frequencies.md b/udfs/flex/collections/frequencies.md
index 134170c..e088773 100644
--- a/udfs/flex/collections/frequencies.md
+++ b/udfs/flex/collections/frequencies.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: coll.frequencies
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Collection Functions
+grand_parent: FLEX Function Reference
 ---
 
 # coll.frequencies
@@ -81,4 +81,4 @@ ORDER BY frequency DESC
 
 ## See Also
 - [coll.union](./union.md) - Get unique elements (keys would give unique items)
-- [coll.intersection](./intersection.md) - Find common elements
+- [coll.intersection](./intersection.md) - Find common elements
\ No newline at end of file
diff --git a/udfs/flex/collections/index.md b/udfs/flex/collections/index.md
new file mode 100644
index 0000000..eddbeb5
--- /dev/null
+++ b/udfs/flex/collections/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Collection Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 20
+---
+
+# Collection Functions
+
+FLEX collections utilities.
\ No newline at end of file
diff --git a/udfs/flex/collections/intersection.md b/udfs/flex/collections/intersection.md
index 561e278..c9c6ac0 100644
--- a/udfs/flex/collections/intersection.md
+++ b/udfs/flex/collections/intersection.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: coll.intersection
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Collection Functions
+grand_parent: FLEX Function Reference
 ---
 
 # coll.intersection
@@ -75,4 +75,4 @@ RETURN u.name, validPerms
 
 ## See Also
 - [coll.union](./union.md) - Combine all unique elements from both lists
-- [sim.jaccard](../similarity/jaccard.md) - Calculate similarity coefficient using intersection
+- [sim.jaccard](../similarity/jaccard.md) - Calculate similarity coefficient using intersection
\ No newline at end of file
diff --git a/udfs/flex/collections/shuffle.md b/udfs/flex/collections/shuffle.md
index 68fc128..3b79084 100644
--- a/udfs/flex/collections/shuffle.md
+++ b/udfs/flex/collections/shuffle.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: coll.shuffle
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Collection Functions
+grand_parent: FLEX Function Reference
 ---
 
 # coll.shuffle
@@ -73,4 +73,4 @@ RETURN shuffled[0..5] AS team1, shuffled[5..10] AS team2
 
 ## See Also
 - [coll.zip](./zip.md) - Combine two lists element-by-element
-- [coll.union](./union.md) - Combine unique elements from lists
+- [coll.union](./union.md) - Combine unique elements from lists
\ No newline at end of file
diff --git a/udfs/flex/collections/union.md b/udfs/flex/collections/union.md
index bed0ca5..41f3b2f 100644
--- a/udfs/flex/collections/union.md
+++ b/udfs/flex/collections/union.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: coll.union
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Collection Functions
+grand_parent: FLEX Function Reference
 ---
 
 # coll.union
@@ -73,4 +73,4 @@ RETURN flex.coll.union(p.categories, similar.categories) AS combinedCategories
 
 ## See Also
 - [coll.intersection](./intersection.md) - Find common elements between lists
-- [sim.jaccard](../similarity/jaccard.md) - Calculate similarity between sets
+- [sim.jaccard](../similarity/jaccard.md) - Calculate similarity between sets
\ No newline at end of file
diff --git a/udfs/flex/collections/zip.md b/udfs/flex/collections/zip.md
index eb8550a..6691880 100644
--- a/udfs/flex/collections/zip.md
+++ b/udfs/flex/collections/zip.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: coll.zip
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Collection Functions
+grand_parent: FLEX Function Reference
 ---
 
 # coll.zip
@@ -77,4 +77,4 @@ RETURN pair[0] AS day, pair[1] AS salesAmount
 
 ## See Also
 - [map.fromPairs](../map/fromPairs.md) - Convert pairs to a map
-- [coll.union](./union.md) - Combine lists as sets
+- [coll.union](./union.md) - Combine lists as sets
\ No newline at end of file
diff --git a/udfs/flex/date/format.md b/udfs/flex/date/format.md
index aa935c9..4845c3a 100644
--- a/udfs/flex/date/format.md
+++ b/udfs/flex/date/format.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: date.format
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Date Functions
+grand_parent: FLEX Function Reference
 ---
 
 # date.format
@@ -98,4 +98,4 @@ ORDER BY e.timestamp DESC
 ## See Also
 - [date.parse](./parse.md) - Parse string to date
 - [date.truncate](./truncate.md) - Truncate date to specific unit
-- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
+- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
\ No newline at end of file
diff --git a/udfs/flex/date/index.md b/udfs/flex/date/index.md
new file mode 100644
index 0000000..c48b284
--- /dev/null
+++ b/udfs/flex/date/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Date Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 30
+---
+
+# Date Functions
+
+FLEX date utilities.
\ No newline at end of file
diff --git a/udfs/flex/date/parse.md b/udfs/flex/date/parse.md
index 4814340..b273c0d 100644
--- a/udfs/flex/date/parse.md
+++ b/udfs/flex/date/parse.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: date.parse
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Date Functions
+grand_parent: FLEX Function Reference
 ---
 
 # date.parse
@@ -77,4 +77,4 @@ CREATE (e:Event {
 ## See Also
 - [date.format](./format.md) - Format date to string
 - [date.truncate](./truncate.md) - Truncate date to specific unit
-- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
+- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
\ No newline at end of file
diff --git a/udfs/flex/date/toTimeZone.md b/udfs/flex/date/toTimeZone.md
index d61703d..6b3be6a 100644
--- a/udfs/flex/date/toTimeZone.md
+++ b/udfs/flex/date/toTimeZone.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: date.toTimeZone
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Date Functions
+grand_parent: FLEX Function Reference
 ---
 
 # date.toTimeZone
@@ -82,4 +82,4 @@ RETURN flex.date.format(
 ## See Also
 - [date.format](./format.md) - Format date with timezone support
 - [date.parse](./parse.md) - Parse date with timezone context
-- [date.truncate](./truncate.md) - Truncate date to specific unit
+- [date.truncate](./truncate.md) - Truncate date to specific unit
\ No newline at end of file
diff --git a/udfs/flex/date/truncate.md b/udfs/flex/date/truncate.md
index 2323611..6b0cfbe 100644
--- a/udfs/flex/date/truncate.md
+++ b/udfs/flex/date/truncate.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: date.truncate
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Date Functions
+grand_parent: FLEX Function Reference
 ---
 
 # date.truncate
@@ -100,4 +100,4 @@ ORDER BY quarter DESC
 ## See Also
 - [date.format](./format.md) - Format date to string
 - [date.parse](./parse.md) - Parse string to date
-- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
+- [date.toTimeZone](./toTimeZone.md) - Convert date to timezone
\ No newline at end of file
diff --git a/udfs/flex/json/fromJsonList.md b/udfs/flex/json/fromJsonList.md
index 1f4d7e7..36467ea 100644
--- a/udfs/flex/json/fromJsonList.md
+++ b/udfs/flex/json/fromJsonList.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: json.fromJsonList
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: JSON Functions
+grand_parent: FLEX Function Reference
 ---
 
 # json.fromJsonList
@@ -79,4 +79,4 @@ result
 
 ## See Also
 - [json.fromJsonMap](./fromJsonMap.md) - Parse JSON string to map
-- [json.toJson](./toJson.md) - Serialize value to JSON string
+- [json.toJson](./toJson.md) - Serialize value to JSON string
\ No newline at end of file
diff --git a/udfs/flex/json/fromJsonMap.md b/udfs/flex/json/fromJsonMap.md
index 374edf0..6f02ae9 100644
--- a/udfs/flex/json/fromJsonMap.md
+++ b/udfs/flex/json/fromJsonMap.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: json.fromJsonMap
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: JSON Functions
+grand_parent: FLEX Function Reference
 ---
 
 # json.fromJsonMap
@@ -77,4 +77,4 @@ result
 
 ## See Also
 - [json.fromJsonList](./fromJsonList.md) - Parse JSON string to list
-- [json.toJson](./toJson.md) - Serialize value to JSON string
+- [json.toJson](./toJson.md) - Serialize value to JSON string
\ No newline at end of file
diff --git a/udfs/flex/json/index.md b/udfs/flex/json/index.md
new file mode 100644
index 0000000..bc59273
--- /dev/null
+++ b/udfs/flex/json/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: JSON Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 40
+---
+
+# JSON Functions
+
+FLEX json utilities.
\ No newline at end of file
diff --git a/udfs/flex/json/toJson.md b/udfs/flex/json/toJson.md
index e25a0cd..937f161 100644
--- a/udfs/flex/json/toJson.md
+++ b/udfs/flex/json/toJson.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: json.toJson
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: JSON Functions
+grand_parent: FLEX Function Reference
 ---
 
 # json.toJson
@@ -76,4 +76,4 @@ SET u.metadataJson = flex.json.toJson(metadata)
 
 ## See Also
 - [json.fromJsonMap](./fromJsonMap.md) - Parse JSON string to map
-- [json.fromJsonList](./fromJsonList.md) - Parse JSON string to list
+- [json.fromJsonList](./fromJsonList.md) - Parse JSON string to list
\ No newline at end of file
diff --git a/udfs/flex/map/fromPairs.md b/udfs/flex/map/fromPairs.md
index d27cdf5..a30c2e7 100644
--- a/udfs/flex/map/fromPairs.md
+++ b/udfs/flex/map/fromPairs.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: map.fromPairs
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Map Functions
+grand_parent: FLEX Function Reference
 ---
 
 # map.fromPairs
@@ -79,4 +79,4 @@ RETURN lookup['US'] AS usaName, lookup['UK'] AS ukName
 
 ## See Also
 - [coll.zip](../collections/zip.md) - Create pairs from two lists
-- [map.submap](./submap.md) - Extract subset of keys from a map
+- [map.submap](./submap.md) - Extract subset of keys from a map
\ No newline at end of file
diff --git a/udfs/flex/map/index.md b/udfs/flex/map/index.md
new file mode 100644
index 0000000..e356721
--- /dev/null
+++ b/udfs/flex/map/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Map Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 50
+---
+
+# Map Functions
+
+FLEX map utilities.
\ No newline at end of file
diff --git a/udfs/flex/map/merge.md b/udfs/flex/map/merge.md
index 473f4a9..120d0cd 100644
--- a/udfs/flex/map/merge.md
+++ b/udfs/flex/map/merge.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: map.merge
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Map Functions
+grand_parent: FLEX Function Reference
 ---
 
 # map.merge
@@ -79,4 +79,4 @@ RETURN flex.map.merge(base, extra1, extra2) AS combined
 
 ## See Also
 - [map.submap](./submap.md) - Extract specific keys from a map
-- [map.removeKeys](./removeKeys.md) - Remove keys from a map
+- [map.removeKeys](./removeKeys.md) - Remove keys from a map
\ No newline at end of file
diff --git a/udfs/flex/map/removeKey.md b/udfs/flex/map/removeKey.md
index e8ef3e5..a297ad9 100644
--- a/udfs/flex/map/removeKey.md
+++ b/udfs/flex/map/removeKey.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: map.removeKey
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Map Functions
+grand_parent: FLEX Function Reference
 ---
 
 # map.removeKey
@@ -80,4 +80,4 @@ result
 ## See Also
 - [map.removeKeys](./removeKeys.md) - Remove multiple keys at once
 - [map.submap](./submap.md) - Keep only specific keys (inverse operation)
-- [map.merge](./merge.md) - Combine multiple maps
+- [map.merge](./merge.md) - Combine multiple maps
\ No newline at end of file
diff --git a/udfs/flex/map/removeKeys.md b/udfs/flex/map/removeKeys.md
index 27e3688..a160209 100644
--- a/udfs/flex/map/removeKeys.md
+++ b/udfs/flex/map/removeKeys.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: map.removeKeys
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Map Functions
+grand_parent: FLEX Function Reference
 ---
 
 # map.removeKeys
@@ -81,4 +81,4 @@ result
 ## See Also
 - [map.removeKey](./removeKey.md) - Remove a single key
 - [map.submap](./submap.md) - Keep only specific keys (inverse operation)
-- [map.merge](./merge.md) - Combine multiple maps
+- [map.merge](./merge.md) - Combine multiple maps
\ No newline at end of file
diff --git a/udfs/flex/map/submap.md b/udfs/flex/map/submap.md
index 09ed862..b56113a 100644
--- a/udfs/flex/map/submap.md
+++ b/udfs/flex/map/submap.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: map.submap
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Map Functions
+grand_parent: FLEX Function Reference
 ---
 
 # map.submap
@@ -86,4 +86,4 @@ RETURN flex.map.submap(properties(p), requestedFields) AS response
 ## See Also
 - [map.removeKeys](./removeKeys.md) - Remove specific keys (inverse operation)
 - [map.removeKey](./removeKey.md) - Remove a single key
-- [map.merge](./merge.md) - Combine multiple maps
+- [map.merge](./merge.md) - Combine multiple maps
\ No newline at end of file
diff --git a/udfs/flex/similarity/index.md b/udfs/flex/similarity/index.md
new file mode 100644
index 0000000..ed4da46
--- /dev/null
+++ b/udfs/flex/similarity/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Similarity Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 60
+---
+
+# Similarity Functions
+
+FLEX similarity utilities.
\ No newline at end of file
diff --git a/udfs/flex/similarity/jaccard.md b/udfs/flex/similarity/jaccard.md
index 83e5148..168aee5 100644
--- a/udfs/flex/similarity/jaccard.md
+++ b/udfs/flex/similarity/jaccard.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: sim.jaccard
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Similarity Functions
+grand_parent: FLEX Function Reference
 ---
 
 # sim.jaccard
@@ -80,4 +80,4 @@ ORDER BY match_score DESC
 ## See Also
 - [text.levenshtein](../text/levenshtein.md) - Edit distance for string comparison
 - [coll.intersection](../collections/intersection.md) - Get common elements between sets
-- [coll.union](../collections/union.md) - Combine sets
+- [coll.union](../collections/union.md) - Combine sets
\ No newline at end of file
diff --git a/udfs/flex/text/camelCase.md b/udfs/flex/text/camelCase.md
index f3e2540..0cdeedc 100644
--- a/udfs/flex/text/camelCase.md
+++ b/udfs/flex/text/camelCase.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.camelCase
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.camelCase
@@ -68,4 +68,4 @@ RETURN field AS original, flex.text.camelCase(field) AS camelCase
 ## See Also
 - [text.upperCamelCase](./upperCamelCase.md) - Convert to UpperCamelCase (PascalCase)
 - [text.snakeCase](./snakeCase.md) - Convert to snake_case format
-- [text.capitalize](./capitalize.md) - Capitalize first character only
+- [text.capitalize](./capitalize.md) - Capitalize first character only
\ No newline at end of file
diff --git a/udfs/flex/text/capitalize.md b/udfs/flex/text/capitalize.md
index 71da235..e9afa12 100644
--- a/udfs/flex/text/capitalize.md
+++ b/udfs/flex/text/capitalize.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.capitalize
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.capitalize
@@ -54,4 +54,4 @@ RETURN p.id, flex.text.capitalize(p.name) AS capitalizedName
 ## See Also
 - [text.decapitalize](./decapitalize.md) - Lowercase the first character
 - [text.camelCase](./camelCase.md) - Convert to camelCase format
-- [text.upperCamelCase](./upperCamelCase.md) - Convert to UpperCamelCase format
+- [text.upperCamelCase](./upperCamelCase.md) - Convert to UpperCamelCase format
\ No newline at end of file
diff --git a/udfs/flex/text/decapitalize.md b/udfs/flex/text/decapitalize.md
index 917c1ad..b033eaa 100644
--- a/udfs/flex/text/decapitalize.md
+++ b/udfs/flex/text/decapitalize.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.decapitalize
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.decapitalize
@@ -54,4 +54,4 @@ RETURN flex.text.decapitalize(field) AS jsonKey
 
 ## See Also
 - [text.capitalize](./capitalize.md) - Uppercase the first character
-- [text.camelCase](./camelCase.md) - Convert to camelCase format
+- [text.camelCase](./camelCase.md) - Convert to camelCase format
\ No newline at end of file
diff --git a/udfs/flex/text/format.md b/udfs/flex/text/format.md
index 92fa1e3..aae79bc 100644
--- a/udfs/flex/text/format.md
+++ b/udfs/flex/text/format.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.format
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.format
@@ -69,4 +69,4 @@ path
 
 ## See Also
 - [text.replace](./replace.md) - Replace text using regex patterns
-- [text.join](./join.md) - Join array elements with delimiter
+- [text.join](./join.md) - Join array elements with delimiter
\ No newline at end of file
diff --git a/udfs/flex/text/index.md b/udfs/flex/text/index.md
new file mode 100644
index 0000000..493d1fa
--- /dev/null
+++ b/udfs/flex/text/index.md
@@ -0,0 +1,12 @@
+---
+layout: default
+title: Text Functions
+parent: FLEX Function Reference
+grand_parent: UDFs - User Defined Functions
+has_children: true
+nav_order: 70
+---
+
+# Text Functions
+
+FLEX text utilities.
\ No newline at end of file
diff --git a/udfs/flex/text/indexOf.md b/udfs/flex/text/indexOf.md
index 3bec25c..ebbcc15 100644
--- a/udfs/flex/text/indexOf.md
+++ b/udfs/flex/text/indexOf.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.indexOf
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.indexOf
@@ -71,4 +71,4 @@ RETURN p.name, p.description
 
 ## See Also
 - [text.indexesOf](./indexesOf.md) - Find all occurrences of a substring
-- [text.replace](./replace.md) - Replace substring occurrences
+- [text.replace](./replace.md) - Replace substring occurrences
\ No newline at end of file
diff --git a/udfs/flex/text/indexesOf.md b/udfs/flex/text/indexesOf.md
index b5bddba..b1a1f7a 100644
--- a/udfs/flex/text/indexesOf.md
+++ b/udfs/flex/text/indexesOf.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.indexesOf
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.indexesOf
@@ -75,4 +75,4 @@ ORDER BY importanceScore DESC
 ## See Also
 - [text.indexOf](./indexOf.md) - Find first occurrence only
 - [text.replace](./replace.md) - Replace substring occurrences
-- [text.regexGroups](./regexGroups.md) - Find matches using regex patterns
+- [text.regexGroups](./regexGroups.md) - Find matches using regex patterns
\ No newline at end of file
diff --git a/udfs/flex/text/jaroWinkler.md b/udfs/flex/text/jaroWinkler.md
index d809b8a..6e12de9 100644
--- a/udfs/flex/text/jaroWinkler.md
+++ b/udfs/flex/text/jaroWinkler.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.jaroWinkler
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.jaroWinkler
@@ -75,4 +75,4 @@ ORDER BY similarity DESC
 
 ## See Also
 - [text.levenshtein](./levenshtein.md) - Edit distance metric for string comparison
-- [sim.jaccard](../similarity/jaccard.md) - Set-based similarity
+- [sim.jaccard](../similarity/jaccard.md) - Set-based similarity
\ No newline at end of file
diff --git a/udfs/flex/text/join.md b/udfs/flex/text/join.md
index 152e185..74425b1 100644
--- a/udfs/flex/text/join.md
+++ b/udfs/flex/text/join.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.join
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.join
@@ -81,4 +81,4 @@ home/user/documents/file.txt
 
 ## See Also
 - [text.format](./format.md) - Format strings with placeholders
-- [coll.zip](../collections/zip.md) - Combine two lists
+- [coll.zip](../collections/zip.md) - Combine two lists
\ No newline at end of file
diff --git a/udfs/flex/text/levenshtein.md b/udfs/flex/text/levenshtein.md
index 6ef649c..840d816 100644
--- a/udfs/flex/text/levenshtein.md
+++ b/udfs/flex/text/levenshtein.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.levenshtein
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.levenshtein
@@ -72,4 +72,4 @@ LIMIT 5
 
 ## See Also
 - [sim.jaccard](../similarity/jaccard.md) - Set-based similarity for collections
-- [text.jaroWinkler](./jaroWinkler.md) - Alternative string similarity metric
+- [text.jaroWinkler](./jaroWinkler.md) - Alternative string similarity metric
\ No newline at end of file
diff --git a/udfs/flex/text/lpad.md b/udfs/flex/text/lpad.md
index b681b6d..b8fe8e7 100644
--- a/udfs/flex/text/lpad.md
+++ b/udfs/flex/text/lpad.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.lpad
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.lpad
@@ -81,4 +81,4 @@ aligned
 ## See Also
 - [text.rpad](./rpad.md) - Pad the end (right side) of a string
 - [text.repeat](./repeat.md) - Repeat a string multiple times
-- [text.format](./format.md) - Format strings with placeholders
+- [text.format](./format.md) - Format strings with placeholders
\ No newline at end of file
diff --git a/udfs/flex/text/regexGroups.md b/udfs/flex/text/regexGroups.md
index 9840f08..8b35dff 100644
--- a/udfs/flex/text/regexGroups.md
+++ b/udfs/flex/text/regexGroups.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.regexGroups
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.regexGroups
@@ -74,4 +74,4 @@ RETURN d.title, urls
 ## See Also
 - [text.replace](./replace.md) - Replace text using regex
 - [text.indexOf](./indexOf.md) - Find simple substring position
-- [text.indexesOf](./indexesOf.md) - Find all substring positions
+- [text.indexesOf](./indexesOf.md) - Find all substring positions
\ No newline at end of file
diff --git a/udfs/flex/text/repeat.md b/udfs/flex/text/repeat.md
index e4caf9b..276aea1 100644
--- a/udfs/flex/text/repeat.md
+++ b/udfs/flex/text/repeat.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.repeat
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.repeat
@@ -89,4 +89,4 @@ indented
 ## See Also
 - [text.lpad](./lpad.md) - Pad the start of a string
 - [text.rpad](./rpad.md) - Pad the end of a string
-- [text.format](./format.md) - Format strings with placeholders
+- [text.format](./format.md) - Format strings with placeholders
\ No newline at end of file
diff --git a/udfs/flex/text/replace.md b/udfs/flex/text/replace.md
index 51ec3df..e89ac44 100644
--- a/udfs/flex/text/replace.md
+++ b/udfs/flex/text/replace.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.replace
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.replace
@@ -84,4 +84,4 @@ normalized
 ## See Also
 - [text.regexGroups](./regexGroups.md) - Extract matches with capture groups
 - [text.indexOf](./indexOf.md) - Find substring position
-- [text.format](./format.md) - Format strings with placeholders
+- [text.format](./format.md) - Format strings with placeholders
\ No newline at end of file
diff --git a/udfs/flex/text/rpad.md b/udfs/flex/text/rpad.md
index ae29f4d..cae31b0 100644
--- a/udfs/flex/text/rpad.md
+++ b/udfs/flex/text/rpad.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.rpad
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.rpad
@@ -72,4 +72,4 @@ RETURN flex.text.rpad(col[0], col[1], ' ') AS header
 ## See Also
 - [text.lpad](./lpad.md) - Pad the start (left side) of a string
 - [text.repeat](./repeat.md) - Repeat a string multiple times
-- [text.format](./format.md) - Format strings with placeholders
+- [text.format](./format.md) - Format strings with placeholders
\ No newline at end of file
diff --git a/udfs/flex/text/snakeCase.md b/udfs/flex/text/snakeCase.md
index adbdd93..dddb07b 100644
--- a/udfs/flex/text/snakeCase.md
+++ b/udfs/flex/text/snakeCase.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.snakeCase
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.snakeCase
@@ -74,4 +74,4 @@ RETURN prop AS camelCase, flex.text.snakeCase(prop) AS dbColumn
 
 ## See Also
 - [text.camelCase](./camelCase.md) - Convert to camelCase format
-- [text.upperCamelCase](./upperCamelCase.md) - Convert to UpperCamelCase format
+- [text.upperCamelCase](./upperCamelCase.md) - Convert to UpperCamelCase format
\ No newline at end of file
diff --git a/udfs/flex/text/swapCase.md b/udfs/flex/text/swapCase.md
index cc46b0a..a8c470a 100644
--- a/udfs/flex/text/swapCase.md
+++ b/udfs/flex/text/swapCase.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.swapCase
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.swapCase
@@ -59,4 +59,4 @@ AbC123xYz
 ## See Also
 - [text.capitalize](./capitalize.md) - Uppercase the first character
 - [text.camelCase](./camelCase.md) - Convert to camelCase format
-- [text.snakeCase](./snakeCase.md) - Convert to snake_case format
+- [text.snakeCase](./snakeCase.md) - Convert to snake_case format
\ No newline at end of file
diff --git a/udfs/flex/text/upperCamelCase.md b/udfs/flex/text/upperCamelCase.md
index 0cecd63..0cc5c8c 100644
--- a/udfs/flex/text/upperCamelCase.md
+++ b/udfs/flex/text/upperCamelCase.md
@@ -1,8 +1,8 @@
 ---
 layout: default
 title: text.upperCamelCase
-parent: FLEX Function Reference
-grand_parent: UDFs - User Defined Functions
+parent: Text Functions
+grand_parent: FLEX Function Reference
 ---
 
 # text.upperCamelCase
@@ -67,4 +67,4 @@ RETURN e.rawName, flex.text.upperCamelCase(e.rawName) AS className
 ## See Also
 - [text.camelCase](./camelCase.md) - Convert to camelCase (first letter lowercase)
 - [text.snakeCase](./snakeCase.md) - Convert to snake_case format
-- [text.capitalize](./capitalize.md) - Capitalize first character only
+- [text.capitalize](./capitalize.md) - Capitalize first character only
\ No newline at end of file