Hi @lize,
Please make sure that you are running at least 8.1.0 firmware. Navigate to SpeedFusion Cloud tab, press choose cloud location button, select location to your liking, press the green save button to save your selected locations profile. After saving it, you can edit it by pressing on the profile name or press apply changes button so the profile would be saved. By default created profile should have all interfaces set to priority 1 which is bonding.