I've been giving this a little thought and I think that "map group" would be a better term than "branch" in this context. We already refer to the page as "Content Maps" so I think we should reinforce that term rather than introducing any new ones.
I'm thinking that the page should show a list with columns "Status", "Title", "Maps" and "Content items". The drop-down "Select branch" becomes "Select map group". The column "Maps" contains the number of maps within the map groups (this is something that was dropped in this PR, but is actually quite useful). The column "Content items" replaces "Nodes".
I have tested this item successfully on 330f69e
This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/10274.