Finding Widgets and other imported stuff in your APP

We are upgrading APPs and are running into the issue of grabbing the correct bits and pieces from the Appstore. Made me wondering if it would be a nice addition to the Modeler to have a "show used and unused Appstore components" Maybe it is already there and I am simply not seeing it :-D
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And something to check if the existing appstore modules/widgets are newer or older...