Navigate to a certain page using a variable set in a session startup script

I would like to navigate to a certain page when a perspective session starts up. Within that “home” view I have a parameter called “CellId”. I have the URL of the “home” page set to /:CellId/. When already in the session I am able to populate the CellId and have it navigate to the correct page but I can’t get it to work from the startup script. I have tried system.perspective.navigate(page = ‘/C2/’) which is what I want the URL to be when you are on the home page.