Simply put, when looking at a user via the Admincp, we need to be able to see and edit that user's active/expired user upgrades. Having an unsearchable list of tons of user upgrades offers us no ability to edit any one particular user upgrade and is thus worthless.
Ideally, finished addon would add a tab to the "edit user" page in the Admincp for "User Upgrades" (next to "User Essentials", "Personal Details", etc).
I hope this is feasible. Thanks!