opens the document properties dialog. I need to be able to get to the "Tabulation" tab with the keyboard only, but I don't see any "accelerator keys" (such as "&F" for the File menu, meaning Alt+F). Unfortunately, the dialog opens with the last viewed tab, so something like a certain number of hits on the TAB key won't do it.
Jeffy's point is that when you open the document properties dialogue you don't know which tab is open: it is whichever happens to be the last one viewed. Therefore a user who is not looking at (or is unable to look at) the screen, or a script, doesn't know what to type to get to the Tabulation tab.
Unless I've missed something (quite possible), once the properties dialogue is open, shift+tab changes focus to the tabs, then 6 left cursor keys guarantee you get to the Document tab, then 2 right keys get you to the Tabulation tab.
You're right. I hadn't noticed that when you navigate between the tabs using the arrow keys, they come to dead ends at the Document and Colors tabs. Thanks for the correction.