Currently, I have to give, both, "Admin Rights" and "Node Mgmt" access to my users in order for them to be able to have "FULL" access to all node management options. Unfortunately, this also gives those users access to add/remove/alter/etc... all other users login, including mine. Now, without the "Admin Rights" access (and with "Node Mgmt" access), the users can access MOST of the node management options. This also bleeds over into other modules, such as "NetFlow Traffic Analyzer", causing various "Node" management options to be disabled unless the user has "Admin Rights" access.
I had opened a ticket with SolarWinds Support, however, I was told this was not actually a problem, and is simply how it is.
I still do not understand why these two options are so closely related. I would think "Admin Rights" should only affect the administration of users, while "Node Mgmt" access should only affect the management of nodes.