Having hundreds of folders, finding certain folder(s) can be time wasting. Please consider adding a "Folder Filter" where typing "xyz" would limit the folder list to only those containing "xyz" in their name.
Using /View/Go to/Folder... you can use GTK's built-in type-ahead feature to find folders easily. Just start typing the name.
I'm aware of GoTo... Recall that a while back, I suggested that GoTo should be one level higher -- it's a full menu on its own... Anyway, this request is for a folder FILTER, not a goto... Similarly to Quick Search where we can see messages containing a string; it would be a great time saver to see only certain folders (e.g., "bugs" folders for all the products I file reports on) that are scattered throughout a large folder tree. View/GoTo/Folder... (or "g") always goes to the first occurrence -- sure, up/down will move between these folders; but unlike Quick Search which persists until cleared, GoTo must be repeated for each folder desired. In the way Quick Search shows only matching messages, Folder Filter would show only matching Folders, allowing quickly moving between them. I appreciate that CM is FAST CPU-wise -- I'm suggesting one way to make it faster for the user... HTH