A ‘Show New Screen’ → ‘This Item’ will give you a new screen that’s attached to the same row you are viewing. There you could place your entry components and it would be different for each button. Like I mentioned in the other post, I’d still recommend user specific columns to temporarily hold you entry values,and a submit button sith a set column action would move those user specific column values to the your regular columns.
When clicking the button to enter your “edit screen”, I would make it a custom action that would first prefill the user specific columns using a set column action before calling the Show New Screen action.
Have a look at this post. It would be similar, but instead of an Add Row action, you would use a Set Column action.