Hi,
The search & selection process for check-out objects from Master model is very time consuming for a big project.
You can use the “Check out by Filter” command, but you cannot save the selection query to use later on.
Other option is to manually select each and every objects that you need to check out.
The feature request is to be able to use the Model views, Queries and Groups from Project Explorer for “Check-out” and “Partial Check-out”.

This will greatly improve the check-out process, especially for complex projects suitable for Multi user.
Thank you very much
Emy