I've seen a lot of code snippets and API references online, but I've not been able yet to find a simple guide on how to edit a Google form with Javascript.
I've got a form linked to a sheet, I want one a drop-down list in the form to get its values from a column of the sheet. So I need to get the sheet, find the column, get the data and feed it to the widget.
I can't even see how to get to the form's script. A kick start would be much appreciated. Thanks