EDIT: I just realized the exact video I used to create this screenshot, the guy mentions the knob is for accessories 
I assume nothing is available quite yet? I was thinking about adding a laser pointer to my pro for reference point orientation with an offset. Probably need to DIY 3d print something I’m guessing.
I must be searching for this wrong - I feel like I looked everywhere. I’m curious what this little knob is for though. It appears to be some kind of tightening knob for possible accessories? Maybe a laser pointer or air assist or something? Anyone know?
