If you need to add or remove a single layer from the leaf carrier, please follow the steps below:

1. Open the Bever app, locate your leaf carrier, and select the "Settings" icon in the top right corner. 

2. In the settings menu, choose 'Reconfigure Leaf Layers.' 

3. Confirm by selecting 'Yes,' then tap 'Manual Assignment.' 

In this menu, you can add or remove a single layer using the plus (+) or minus (-) signs, without needing to scan each layer individually:

After adding a layer with the plus sign (+), save the configuration by selecting the disk icon.