A user must have both 'Enter data for others' and 'Editing' rights in order to be able to re-roster. If you have not been given these rights by your WELLA administrator, please contact them for assistance with changing the examinee's roster.
If the Administrator cannot re-roster the examinee, check that there is not a pre-existing assessment for this student. To ensure that student is scored correctly, they cannot be re-rostered from the 'Roster' screen if this is the case.
You can re-roster a student that has an assessment entered from the Student Demographics screen. However, if the student they are trying to re-roster already has an assessment entered for the current test window, the student cannot be moved until after the current test window closes or the data from the current test window will be lost and have to be re entered.