This article answers the question of whether it is possible to copy the security rights of an existing user to another user.
Everest does not provide an option to copy an individual users' rights to another user.
The recommended workaround to achieve users having identical rights is through the use of 'Groups'.
You can create Groups (File > Setup > Miscellaneous > Users > Groups). You can assign the set of rights for the group and then by including a user in the group, the group rights apply for that user, thereby resulting in all users belonging to the group having identical security rights.
More information on group security rights can be found in Setting up a Company: Group Rights.