Make ed excell respond to onmousedown

What’s the simplest way to make an ed type excell respond to mouse down? Clients are complaining the edit doesn’t begin sometimes when they think it should (ie, a sloppy click).

Try to use excel navigation keymap. Please find example here dhtmlx.com/docs/products/dht … excel.html

Hm, I don’t see how that can make an editable cell respond to the mousedown event?