[Feature] Assign-able Hotkeys

[Karl DD]

Allow users to assign their own hotkeys for the various different tools and settings.

Also, something like the tab key to show/hide the interface.

[q_x]

This is a must-have (but not to late even if in beta releases, IMHO).
Propose: key to heavily randomize some things (change tools, affect its parameters). Preferably something big, like [SPACE BAR]

OT/priv:
Karl is your PM box full or blocked O_o?

[Karl DD]

This has been implemented in Alpha 003.