3
Google Spreadsheet forces you to be in overtype mode whenever you edit an existing formula.
The only way out I know is to type gibberish. That is, for how every many characters you want to insert, you type however many gibberish -- while still losing a few meaningful formula characters.
Is there a way convert to insert mode when editing formulas on Google Spreadsheets?
Note: Insert
key does not work
1Are you sure the
Insert
key on your keyboard hasn't been pressed? – Michael Frank – 2015-11-12T22:47:55.217