Can not find usermanager

I have a x86 system that has been setup as a Access Point. Usermanager was installed some time ago and if I got to system/packages, it is there. When I go to Tools, it is not in the list. This is ROS 4.9 with lic lvl 5. How can I solve this?

I’d like to use usermanager for DHCP on my wireless client.

I
Am I correct to install usermanager on the same AccessPoint machine or it has to be on a separate machine?Pls advise.

Any advice? TIA