[graphiql] Ability to copy documented query/mutation into the active query window

[johnnyggalt]

I'm fairly new to GQL and GraphiQL. I may be missing something obvious, but it surprises me that I can explore my API surface via the "docs" window but I have to manually type everything into the query window. Would it be possible to allow the user to transfer a templated version of the query/mutation they're looking at in the docs window across to the query window? This would save a bunch of needless typing.