As I don't get what you mean by "not the HPC shortcut or the 3rd shortcut", would you elaborate your advice a bit more?
As you can probably see about what we're trying to establish, we are trying to do all jobs on the HPC server via X-terminal. For our case, each client will install x-term such as MobaXterm. I believe each client has to set the environment variables from its own terminal otherwise they've set in the host server already (correct me if I'm wrong) to connect to the the host server.
Anyway, the steps are following fyi.
1. set the environment variables (such as export ANSYS...=1055@... etc)