How do I edit my collections?  It used to be easy to do but now I can't find a way to edit it.  I can view it and install things from it but that is all I seem to be able to do.  I'm probably missing something obvious here.  Please help. 

I searched community first but nothing comes up related to collections.  

If you go to the collection’s page you can do basic edits. You can also make edits from your library.