Permission to change one column in a report

Smartsheet newbie here -

I am trying to configure a field in a report so that the user (editor - cannot share access) can notify us when they are completed with their work on the report. It is set up that when they change the status in that column (on a specific row), automation will send an email to me. The problem is in reports, the access level I have to use only allows them to comment or attach documents. I have to use a report, versus a sheet, because I need to lock and hide fields. Smartsheet support says there is no way to modify/change a specific column but someone in the community might have an alternative.

Has anyone got a workaround for this?

This is the last thing I have to figure out before we are ready for go live - thanks!