That is not possible on the CD version running on a Mac. The only way I can change it is to go to the form. The bug is that the amount gets changed to $300 after the second verification check. When will this get fixed? If I have to make updates, I have to go through this workaround each time. From other posts, it appears that this is a regression bug from the 2020 app. Between the 8812 bug and this one, I have spent two hours troubleshooting. Please fix.
