Can you set default context_settings for ALL click objects created there-after?

[rlaphoenix]

Currently in a few of my projects I want to map -? and -h to the help info, not just --help. This means I need to set context_settings on all root click objects.

Is it possible to define help_option_names=["-?", "-h", "--help"] for all click objects but still allow per-object overrides?