Ok I just noticed one oddity. The vetra USB multicaster will convert button4/5 presses to middle mouse click. Buttons 1/2 (left right) work just fine. I do not have button3 (middle button) but I do have two extra buttons 4/5.

In my case it is actually useful since I can map buttons 4/5 to jump/mez for individual use and map the button3 to nuke (so I can quickly have all members nuke an add). It is something you need to be aware of though.

Ziran