A better layout for the "Advanced Edit" button is in the lower right corner of dialogs, instead of the current lower left. This will reduce confusion with the "More Properties" button, which does make sense to locate along the left side of a dialog. For the Image Properties dialog, it would be best to place "Advanced Edit" on the same line as "More Properties" (dialog is in collapsed state), then move it to the lower right when the dialog is expanded (i.e., not on same line as "Fewer Properties" button.)
Checked in 11/13
I thought we wanted the buttons on the left to avoid confusion and proximity errors to the OK/Cancel buttons. Maybe that's just a Mac issue?
Confusion with OK/Cancel needs to be weighed against how it looked with the More/Fewer buttons in the Image and Link dialogs. Having Advanced Edit on the right is much better for the latter.
verified in 11/29 build.