When you have created a custom view of branches (eg. selected), and create additional branches from the custom view they should be added to that view. Otherwise you have to go back to the original explorer and find them all again. This would be convenient for working on a project distributed over several branches.

It would also be useful to be able to add and remove branches from an existing custom view. eg. from the branch list panel, have a menu 'add to branch explorer A' (they might need ids).