Add a Bridge
Open the bridges page and click the "Add new Bridge" button below the bridge list. This will open a new page, where you can provide a name for the new bridge and select the type of bridge you want to add.
After you click on "Add", the bridge with the given name and type will be created and added to your stage. You will be navigated to the configuration page for the bridge, where you can setup the initial configuration for the new bridge.
Follow this guide on how to configure a bridge to the stage.