I'm using Inventor 2016 to make sheet metal parts and was happy to notice support for multibody parts extended to cover sheet metal parts as well. However, it seems to me that it is not possible to pass alternative presentation sketch for punch tools when generating final models with make part or make components commands. So, I decided try to make all punches not require alternative presentation already in multibody part and add missing punches after making final parts. When I then set from flat pattern options the second sketch presentation active I lose all punches created in multibody part (even they have an alternative presentation defined). Is this really how it should be working because like this there is no optimal way to make modelling at all?