Multi-row dependent drop-down list stops working correctly when a row is inserted. I think I need a script so that the drop-down options in column B, that change depending on what drop-down option is selected in column A, still work correctly when a row is inserted. I don't know how to write a script to do this.
I followed the 'Multi-row dynamic drop-down list' instructions from this site: https://infoinspired.com/google-docs/spreadsheet/dynamic-dependent-drop-down-list-in-google-sheets/
The above instruction only work if you don't need to insert new rows. :-(
My Google Sheet is attached. See the help notes tab at the start. I have stripped out all unnecessary tabs and data.
https://docs.google.com/spreadsheets/d/1H-v6Nc0B5t9zj6TvVZ7hAUhrlsrJJt3RHQY1860rfZ8/edit?usp=sharing