When using the “Store User All” button on the GUI Dashboard page, the GUI actually sends the STORE_USER_ALL command to all connected devices on the bus. For example with 2 outputs (at 0x5A and 0x5B), it sends the STORE_USER_ALL command to slave address 0x5A (output #1) and to slave address 0x5B (output #2). You will get a prompt to disable both outputs, and 2 banks of nonvolatile memory are used. If you go to the device detail page and click the STORE_USER_ALL command, only the data for the output you were looking at (0x5A or 0x5B) would be stored.