I am testing vmix for use it in a four independent screen setup.
So I'm using the maximum simultaneous Vmix outputs (FullScreen1, Fullscreen2, External1 & External2)
I found the Launchpad device is a ideal addon to use it with the VMix Activators function.
But I can't find the right options inside the Activators pane to control the Lights the way I need .
Do am I missing something ?

Bellow is an illustration of what i need.

Basically I use the first four rows of buttons as a Input Switcher for each of the four screens Outputs.
I need that only one button keep lighted on each row, indicating which Input is active on that row

http://imgur.com/a/Z5y1v