Merging and layers management
To keep your layers organised, create folders for the layers and sort them accordingly. If you subsequently want to combine the selected layers to do a filter or tonal adjustment overpass in Debut, just right-click when you’ve selected the layers and choose Combine Selected Layer. Merging the visible layers include the Paper as well. The aforementioned step isn’t advisable if you want your layers separated.
You can merge everything via Merge Layers, or merge visible layers with Ctrl /Cmd+Shift+E. Sort and manage your layers by placing them into folders.