Step1: To set up Fuse as a new network on Metamask. Click on the network selector at the top of the app and then choose "Custom RPC" from the list.
Step2: Then in the "New RPC URL" enter this address: New rpc URL: https://rpc.fuse.io
Optionally you can add the full parameters:
Additional: https://rpc.fuse.io
ChainId: 122
Explorer: https://explorer.fuse.io
Symbol: Fuse