Add shortcuts for going the n:th tab, and also for cycling through them (I know Ctrl+Tab can cycle through documents, but it doesn't display them instantly AFAIK).
Note: finding proper defaults for the keyboard shortcuts was not so easy. Ctrl+Fx would have been my first choice, but Ctrl+F2 is already taken. I find Ctrl+1 and Ctrl+Alt+F1 too awkward. I settled on the numpad characters. For Next/Prev tab, Ctrl+Plus/Minus can't be used because they are used by zoom.