Hey @David_G,
Try changing your event handler from click cell to change cell. Also, selectedRow will not track edits, you will need to use tbl_requierement_levels.changesetArray.
I made a youtube video where I explain this here https://youtu.be/v1YfE9gSaoM?si=Dmpy4bf9ZsLTM5Yt
Hope this helps and let me know if you have more questions