iOS Shortcuts and home assistant server selection

I currently have 4 HA servers (don’t ask!) and am trying to use iOS shortcuts to trigger some scripts.

This works fine, but Siri asks me to choose which server each time, presenting a list to choose from.

I’m sure there’s a way to enter the server name into the shortcut so that it just runs the script on the correct server but I can’t figure out how.

Any ideas?