How to toggle windows with controller?

I searched all over the place but can not find an answer to this: In StudioSetup/GenericRemote I can not find a command for the controller for displaying mixer window. Normally on a computer keyboard this window toggling is done by F3, but I want this done by a controller. Please enlighten me, any help is very appreciated!

Works like a charm, thank you Rhino, you’re great!