I'm running LyX 2.0.5.1 on Linux Mint (equivalent to Ubuntu Quantal). The Math help manual pointed me to Tools > Preferences > Editing > Control, which has a drop-down menu of three choices for what math macro editing should look like. I tried all three and could not see any difference in the macro editing. (I even saved the choice and restarted LyX.) Am I missing something?
Thanks, Paul
