In site.bind, we have the following binding: \bind "~S-ISO_Left_Tab" "cell-backward"
Since ISO_Left_Tab itself is defined as Shift+Tab, ~S-ISO_Left_Tab is apparently interpreted as Shift+Shift+Tab = Tab, which results in the wrong binding of Tab to cell-backwards. See this discussion: http://marc.info/?l=lyx-users&m=141234899011761&w=2 Am I right that the binding should thus be changed to \bind "ISO_Left_Tab" "cell-backward" Jürgen
