Hi Petr - interesting - I did not remember this part of Cobalt.

I just downloaded the latest demo version of Cobalt to give it a try, and it looks like enabling the "Face on" snap works for snapping the point location on to a surface, and some "center-point" based commands like circle are aligned as you would expect, but other commands such as polyline aren't. Like the x-axis and y-axis type ortho snapping does not happen aligned to the local plane's x/y axis. Rectangle corner/corner is not aligned, etc...

Yeah, the new function in MoI is much more comprehensive than that, it actually literally becomes a temporary construction plane including straight snaps for polyline, angle constraint will be in that plane, etc...

One thing I need to do is to maybe re-organize the x and y axis directions to be in a more expected direction, right now it uses the literal u and v parameter directions of the plane, which can possibly have stuff like the cplane x axis pointing up vertically, stuff like that.

- Michael