On assemblies, we activate parts to have possibility to use assembly references. The problem is when we just have instances models and we want to propagate the new feature to all, we need to open generic model, resume the suppressed feature, delete the column on the family table..... lot of boring work!!!
Why do not include a new assembly capability which allow to "activate generic" part of a instance element directly on the assembly.
Thanks for voting and sorry for my "morning english".