iphone – How to toggle insert/overrwrite in Google Sheets App?

On my desktop, I use Sheets in overwrite mode — much of the time to change a formula to a number. If I want to edit it, I use the formula bar.

On the app, I don’t seem to have a choice. I have to explicitly tap the cell, double tap it to get the Copy, paste, clear ribbon; tap clear, then edit.

Is there a way to edit in overwrite mode on the app?