In the iTwin Synchronizer web portal, if a connection is deleted, we have an option to delete/unmap the model from iTwin. But if we have the connections created using iTwinSynchronizer desktop, we dont have that option. Users want an Admin option to be able to delete the unwanted iModels from the iTwin.
https://communities.bentley.com/products/digital-twin-cloud-services/itwin-services/w/synchronization-wiki/61353/delete-a-connection-in-the-itwin-synchronizer-client