Possible to select all or none?

[Hetari]

When displaying a lengthy checkbox list, it would be advantageous to enable users to select all options, deselect all options, or invert their choices with a single keystroke (e.g., using 'a' for all, 'n' for none, and 'i' for invert).

I've encountered difficulties in finding any existing solutions or resources to implement this functionality.

[Cube707]

#275

Isn't this already implemented?

[Hetari]

Oh, my bad. Thanks for pointing me in the right direction!