ctrl-shift-tab

I have the latest nightly build of 2.0 and I just noticed something. Ctrl-Tab can be used (as in may applications) to cycle through open documents. However, it's also usual for Ctrl-Shift-Tab to cycle in the reverse direction, and this doesn't work in MuseScore 2.0. Can this be added? It seems that Ctrl-Shift-Tab doesn't currently do anything at all, so it should be available.