Collection ➡️ List/Index Function needed ⬅️

Because this now came up again and before it splinters in more lose threads I open this to collect where such a function is needed.
I've so far:

Hide Prombt - A list where we see which are hidden and which not
Followers - Seeing who is following us and who we are following
Tags - Which Tags we've created (and a function to delete/edit them)
Notification - Overview if there are more Notifications then in the actual field are fitting
Albums - Overview for which Pictures are in which Albums (also something in Gallery to present them there)