You can exclude a member from a security role if only this member has any other role assigned.
To exclude a member from a role:
In the Settings App, go to Accounts and Roles > Roles.
Double-click the role. The Security Role [Role Name ] window opens.
Click the Members tab, select the account to exclude and click Remove.
Click OK to close the window.
NOTE: If this account is currently in use, your changes will be applied the next time the user logs in.
IMPORTANT: You cannot exclude a member from a role if this member does not have any other role assigned.