16 pads, grouped together as 'radio buttons' / mutually exclusive buttons.The attached file is mapped for Launchpad (minus Automap), but should be easy to change for other grid controllers - APC40s etc. - might save someone else some time. Tedious business, m..a...p.p.i..n.....g
Launchpad radio buttons 1.jpg Launchpad radio buttons 2.jpg

Launchpad radio buttons 1.jpg Launchpad radio buttons 2.jpg