Hi meanGoreng, you can use the Construct > Extrude command to get some level of that currently. If you extrude a face sub-object of a solid it will automatically perform a boolean with the main piece, so you can get results like this:



I do want to have it also work for rotation and other transforms in the future as well but it is pretty difficult to implement though because it depends on having a good mechanism for extending the surrounding surfaces and trim boundaries which is not an easy task. If I am able to integrate a different geometry kernel in the future for improving filleting this type of local face replacement will probably be a target as well.

The geometry library that MoI currently uses does not have a very good mechanism for it, that's why it is not implemented fully in MoI right now.

- Michael