touch screen alongside standard display in a multi display system

Speculous

Honorable
Sep 10, 2013
3
0
10,510
Googled and searched here for an answer to this, found nothing....

If I go with a touch screen will I need to get all three as touch, or can get away with a mixed set up in this regard? Are their performance differences with touch screens that might make this a bad idea?

Thanks,