Instant Grader problem

[Didier Bur]

Hi,
I have a problem with InstantGrader by ValiArchitects, free version.
After having created a terrain group with sandbox tools, I create a closed loop of edges in another group, select both groups and it tells there is no group selected ? Anyone got this problem too ?

[Gaieus]

Didier, it says no meshselected (not group). Open the mash group and do it inside (I think). You may need/want to smooth that mesh first however.

[Didier Bur]

That's it, the group of the loop must be nested inside the terrain group.
Thanks a million (One should ALWAYS carefuly read error messages, a mesh is not a group, hehe...)