Hey guys,
First of all thanks a lot for all your ideas and collaboration.
I'm glad to let you know that this idea was implemented in Service Studio version 10.0.830.0!
This includes a completely new Find experience where you can search for any public element within the factory, and it will asynchronously search in all modules for you giving not only where it is being referenced but also the number usages in each module. Finally, you can choose to open the modules you want to see!

A special thank you to Mário, the idea owner, you can find your contribution in this version's release notes:
https://success.outsystems.com/Support/Release_Notes/Development_Environment/Development_Environment_10.0.830.0
Hope you like it!