How to get triplet grid in sample editor?

Are you sure there is’nt some setup drop down selections on the sample editor window that allow you to define the grid timing?

You’d think so but from the usual editor Quantise and grid boxes the settings don’t seem to be applied to the window. Just the whole bar lines. Could be that we’re all missing something and that it’s set like the tempo and time signature in the Tempo track where they are set at the info line.
Though as yet I haven’t checked if the gridlines kick in if the audio material has hit points etc. applied.
Anyone?