# Specify ME Runtime 3.20 and earlier user security codes

ME Runtime 3.20 and earlier user accounts work with security codes to determine who has access to the system. To have access to a display that has one of these security codes assigned to it, the user must have an account set up with that code turned on.

## To specify ME Runtime 3.20 and earlier user security codes

1. Click a user name in the spreadsheet to select it. The name and other details are shown in the form section.
2. Specify the user’s access in the Security Codes part of the form by clearing the check box beside the security codes, to which they do not have access, or double click in the appropriate spreadsheet column to change the Y to N.
3. Click Accept.
4. Repeat the process for each user.
5. When you have finished adding user accounts, click Close to close the editor and save changes.

## See also

Set up ME Runtime 3.20 and earlier user accounts

Delete a ME Runtime 3.20 and earlier user account