Hello,

I think it would be useful to have a feature in which the user could lock the structure of AA residues, without freezing them in 3D space, as it does with the freezing segments. For instance, if you had a bunch of sheets, and you wanted to arrange them into a beta barrel, the user would want to lock the sheet conformations, but not freeze them in 3D space, or perhaps lock two h-bonding sheets together (which would include locking a joining loop. Another possible addition in this vein, would be making locking bands, which lock the distance of two resides.

Thanks,
Scott