Issue: When mirroring a part that is dependent, the new model file does not have the MBD information taken from the original. The process of mirroring a part does not allow the user to specify a specific start part for MBD to use, it takes a default one from Creo. Issue description: • When creating a mirror of a part file, the users are not asked to select a specific start part to use. Steps to reproduce issue: • Create a mirrored part within Creo that has MBD information within it and see what actually comes over into the newly created mirror part file.. Expected result: The user should be prompted the ability to select any specific start part to have the newly mirrored part created in. Creo could also automatically generate the newly mirrored part file with the same MBD start part used for the original part file. Reference data: • See the information provided in the case file number 15677433.