Magic Trackpad - right click and hold (for 3D Software)

Hey guys, I figured I wanna maybe get completely rid of my mouse. And now I'm getting started to modify my trackpad with better touch tool to make me more productive.

One thing that's crucial and that I totally don't get working is the comparably simple thing to simulate a right mouse click while holding the mouse button, which is needed to work with virtually every 3D software. What I have tried is simply setting up the three finger click as the right mouse button.But the problem is the drag does not work. so I only can click one point but not move.

I think I have disabled everything that could potentially conflict with it. So I think it's maybe a setup issue within BetterTouchTool. But I have no idea how to approach that further. Any input would help. Thank you.