select content of a cell when entering the cell

I have a grid that I want to have the whole content of a cell to be selected when the user enters the cell. this would allow them to start typing and overwrite what is currently in the cell.

I have tried to use the selectCell() method but that wont select the contents.

In case of “ed” eXcell type you can use:

if (stage==1){
return true;
return true;