If you have IndependantBrnaches turned on, the table of items at the top of the "Add items" screen still displays all the items from all the libraries (with the Edit/Delete links missing for the items that belong to other libraries then the library of the logged in user). This can be a long and not very useful list if there are a lot of libraries and copies. It would be nicer if this display was governed by the SeparateHoldings syspref, and items from other libraries were e.g. put in a second tab (so they are available to look at, but not "in your face" immediately).
Sounds like Bug 10278 is related to this, but that the IndependentBranchesRecordsAndItems syspref will cause a more complete separation between libraries. I can imagine situations where libraries want to easily see just their own items but still have an easy way to see items at other libraries, and so I don't think this enh is a duplicate of Bug 10278.
I really like this idea of a tabbed display for items by branch. It would help pick your 'own' items easier even without IndependentBranches.
(In reply to Katrin Fischer from comment #2) > I really like this idea of a tabbed display for items by branch. It would > help pick your 'own' items easier even without IndependentBranches. I still like this idea :)