In the PROPERTIES editor you can use the Tab key and shift-Tab to move between the properties. But it doesnt (always?) save the entries. For example, a grid cell Columns when expanded has 4 sub-options for Large-Xtra-Small.
If I have say "3" in each option and want to change them all to "2", I click and highlight in the first one, type 2 then tab,2,tab,2,tab,2,tab
If I open it up again it usually has the first and last "2" but the others still on "3".
If you press Enter/Return on each entry though instead of Tab-ing out of the fiedl then it gets set correctly.
Hope that explains it clearly?