Hidden Commands

Right mouse click

This will undo a move. (Has the same effect as using the "Back" button)

Ctrl-C

This will copy the game sequence into the clipboard.

Ctrl-V

This will paste into the input. (Note: It adds on top of what you have there already)

Double clicking in a listbox

If you double click on a move in one of the listboxes, that move will be made. (Useful for playing out the main line)