I have a file that multiple users access at different times of the day. I have a Workbook_Open Event that will password protect the sheets if the work book is opened in read-only access. But what I want to do is if the user clicks the notify button when the alert for somebody being currently in the file a sub will trigger and then unprotect the spreadsheet for their editing, after they are notified. Is there a change to read-write event or something comparable?