You can see Mudfish menu at "Service → Mudfish" after logging in using Luci web interface (management UI).
There are two sections currently:
There's a button to start / stop Mudfish. When it's started properly, you can see a link to access UI of Mudfish Launcher.
Please check Admin Page section for details about how to use dashboard.
You can open Support Tunnel if you'd like to get a remote technical support.