Ah wow! Thanks Christian! I, at least, am very happy and content about this subject-thread!
MLeft and MRight work great in TableMode of EmacsOrgMode!
Agree too: Rectangle editing is slower than Christian's method--EmacsOrgMode has blown me away all over again!
Christian's method is a manual one though, Juan's and Dan's are program/app based--there is more than one way to skin a cat.
All of the methods @do@ help one sort columns (in the way Gary described) in OrgMode.
But still, playing devil's advocate here: There are those disappearing hlines in Juan's method--maybe there is some code to write here.