Belated thanks for this clarification, which works perfectly, apparently on any Mac or any sofa–even mine. The fact that Ctrl-Cmd is on the left side of the MacBook keyboard, thus necessitating a modified cross hand technique for those with debilitated right hand mousing is not SU’s fault. But it does suggest that to inexpert pianists the three button advantage is as obvious and desirable as it is in suits. Not that I mean to recommend any other type of suit…
However… Call me obstinate, but I don’t see why the Esc key shouldn’t function in LO as it does in SU. (Like a bunch of other things, such as the Opt key in copying, as previously noted).
By the way, has this topic now been moved to LO technical issues? I’m still finding my way around this forum.