Option to send keypress on activate

[jradam]

It would be useful to have an option to send a keypress on activate. Currently, Mousable hijacks the key used to activate, so it can't be used for other keybindings as far as I am aware.

For example, I hold Caps Lock to activate Mousable - it would be handy to be able to send a single Esc when Mouseable is activating, so that I can use my Caps Lock as an Esc key when using Vim.