Went back and checked what IA was doing recently.
Looks Like IA allowed MFS on the same IA form for 2022 taxes, but looks like that was eliminated for 2023 (and I assume future years).
Either people are doing too many strange things, or too many unintended errors in the two-column allocations, or perhaps the state(s) were just having too many difficulties in figuring out if the taxpayers were doing it wrong.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
