Modifying the specified page is not supported in the latest Lansweeper production release. Displaying the user groups of the currently logged on user was a deliberate decision on our part, to help you troubleshoot potential access issues. (Only the groups of the currently logged on user are displayed.)
In the 6.0 beta, we removed the user groups from the access denied page however. If you are interested in testing the beta, please contact support@lansweeper.com