For formulas: could it be that Grist formulas are per-column rather than per-cell? This can take a little getting used to, but we think it leads to neater spreadsheets, and there are other features that can take up the slack that mixed-content columns used to (like multiple views within a page/tab). Sorry you hit editing glitches - thanks for letting us know, and if you have the time I'd like to hear more here or via the "give feedback" button in the app. Cheers!