There’s a Fully Kiosk driver available for Hubitat and it exposes a loadUrl() method that you can use to load a specific dashboard URL. So you could use that within a Hubitat rule or SharpTools rule to automate which dashboard is displayed.
For a smoother experience, you can use the Fast Switch approach documented in the following linnk. It’s slightly more complicated to wrap your head around, so I usually suggest starting with the basic approach of loading a dashboard URL directly… then if you’re comfortable with the steps in the linked post for fast switching, upgrade to that. 
How To: Fast Switch Between Dashboards with Fully Kiosk Browser - #4 by josh
