Once characteristics have been entered they can't be altered by the user to prevent unwanted changes from occurring. McRoberts can change data when you submit a Data Correction Form (DCF). You can download the DCF here. Fill the form completely and attach this to an email to McRoberts support. McRoberts will check the form and change the data. Please clearly state what needs to be changed. If you need any assistance, McRoberts is happy to help you.