Currently the only options for motion controllers are mostly outdated tech like the wiimote or playstation move. itd be really cool to see current day vr controllers be used as a part of tracking like the vive controllers or the index knuckles. As a bonus you could even use the index's built in finger tracking to have finger tracking with the software! I believe this would be a great feature to add as those controllers are far more accurate and reliable than any of the current options. Thank you for your time.