I think the Set Network Location
Action switches to a preconfigured Network Location such as "Home" or "Work". It does not switch directly to a named Wireless Connection.
You would first need a Network Location configured in System Preferences called "BearTrackHideawayHome" or anything you want, configured as you want.
Then you can use the Set Network Location
Action to switch to that configuration and its settings.
There is also this previous thread which might have a solution for your task: