As a Go administrator, you can auto approve remote agents by using a shared key between the Go Agent and Go Server.
On the remote Go Agent machine, create a file named "autoregister.properties" under the < agent_installation_directory >/config directory and add the following contents:
agent.auto.register.key=388b633a88de126531afa41eff9aa69e
agent.auto.register.resources=ant,java
agent.auto.register.environments=QA
Now, bringing up the remote agent should automatically register with the Go Server without the administrator having to 'Enable' the newly added agent.