added a comment - 30/Aug/13 7:15 PM - edited
The issue is actual for grids with Cell Selection feature turned on.
The following syntax is proposed for selecting (meaning SetSelection) cells:
select [get-item "Item Label" | get-item-cell -column "Column Title"]
select [get-item "Item Label" | get-row-header]
Yet there is one more thing to think about: when we click on row header, whole item is selected (all its cells are); so maybe it's better to use select "Item Label" (default syntax for grids without cell selection ability) for that case, and not get-row-header?.. For cells selection the syntax proposed above still to be used.