"Directory diff" button does not appear if "Diff to local" is used in another branch
If I mark two revisions (in two different branches) then use Visual Diff (by right click) I get a Visual Diffs window which shows all differential files and down right appears a button "Directory diff".
When I only mark one revision (in a different branch to local) and use Diff to local (by right click) I get the same Diff window without the "Directory diff" button.
Regradless which diff tool I set in the Settings. Maybe this occurs only if there are a lot of directory changes?