It would be great if one could assign element types (or at least reduced version) to multiple bodies at once.
For example, assigning C3D20R to multiple bodies from C3D20 can be quite tedious if a part has been partitioned into multiple bodies.
As a workaround, you could use the Merge option on parts to get a single Part object.
However, this makes later selections more tricky (e.g. you have to rely on element sets to apply different sections) and I agree that such an option would be helpful. For example, 3DEXPERIENCE has Global Element Type Assignment for that:
