Our 3D CAD supplier models have been moved to 3Dfindit.com, the new visual search engine for 3D CAD, CAE & BIM models.
You can log in there with your existing account of this site.
The content remains free of charge.
In the Menu Manager, you have the following selection options:
Replace All Occurrences
All instances within an assembly are replaced.
Replace Selection
Only the selected parts are replaced.
If you want to replace parts that are within assemblies and dependent on others per PARTreplace, these may be possibly removed as well.