RealVNC Server on R Pi model 3B

I am trying to set up an R Pi 3 on my local network for Cloud access. Its OS is Raspbian GNU/Linux 10 (buster). I have downloaded and installed Server 7.6.0 (r50657) ARMv6 (Aug 2 2023 12:06:59). But I can only run it in Virtual mode which doesn't seem to give me access to "License". Hence Connectivity is greyed out and only has the default "Allow direct VNC connections over TCP" port 5901.

An R Pi4 on the same network was happy to have Cloud connections enabled.