we have capacity management in marketplace. You are able to create changes from the capacity management module (as detailed below):
But when I go to the change, I can't see any link to this capacity planning (see image below):
This happens with all use cases using custom modules that open changes or other records (requests, incidents, etc.).
Related records should have to be visible when the records are opened also from custom modules in Studio or from marketplace modules, in the standard "Related records" menu.