Possibility to have effect per row

[mvdirty]

Well, It’s on github and Open Document format. Maybe I should open it for the public to edit?

If you are open to giving external contribution another try, I’m sure that all of us here would be happy to comply with whatever restrictions you’d like to place on contribution, whether it be to avoid large-scale changes, to propose changes by opening Issues first, or whatever you think would help keep things from going off the rails.