How to use the LaunchMod script
From ModWiki
The general functionality of the Launchpad script has been retained, and it should work exactly as the stock script does in every respect, except for one:
If you press both User1 and User2 at the same time, this should enter Mod Mode.
Once in Mod Mode, the Session button is Shift. The User1 button is Lock. The User2 button is Alt.
The nav buttons will navigate the Monomodular grid, and the left 8 buttons control the Keys.
To exit Mod Mode, simply press the Mixer button, which should be illuminated red.
Enjoy :)