Main Toolbar hotkeys / position mapping not working.

Main Toolbar hotkeys / position mapping not working. I've tried resetting default settings. Position mapping and aids are checked on. Aids are visible. But for Main toolbar, with aids showing 1,2,...9, for element selection, fence, ...measure respectively, none of the buttons work. Any thoughts on how to enable?

Picture below is screenshot. Descartes was not active window when taken. Aids turn blue when Descartes is active window. Still don't work when blue.