This seems to me to be failry standard grid operation.  What I want is:

user clicks twice (not dbl click)
   1st click select cell
   2nd click (same cell) edit cell

user dbl clicks - edit cell

(optoinal) user clicks another cell same row being edited - edit cell

This (older) post indicates a very NON-elegant solution of keeping a  form variable to track last cell, etc.  This should be standard behaviour of the grid. (http://forums.infragistics.com/forums/p/784/20830.aspx#20830)

Is there a way to achieve this now?

Peter