1. You cannot embed the EMX skeleton model used in the main assembly and all subassemblies. This part needs to be the same part throughout the whole EMX mold base assembly. When the Skeleton model is an embedded part, several EMX commands like the Moldbase Definition will not function.

2. You cannot embed EMX subassemblies as this is not compatible in Moldbase Definition.

3. You cannot embed EMX plates as this is not compatible in Moldbase Definition.

4. You cannot embed EMX components when EMX components are embedded, as you cannot modify, reassemble, and copy them.

5. You cannot change the mold base size when an EMX component defined by the Moldbase Definition dialog box is embedded.