The 3D and 2D stamps in Resources are very important to Bakin.
A "stamp" is essentially a model, motions, materials, etc., all rolled into one for use in the game, and anything placed on maps are "stamps."
For example, a resource in "Models" under "Resources" cannot be placed on maps at this point.
By pressing the "Stamp Button" above the tree column, the model will become a "3D stamp" and will be registered in the stamp palette of the map editor.
By using "stamps," you can link different materials to the same model, or keep the same model and other assets, but change only the additional attributes.
DLC assets obtained from Steam can be imported from the Asset Picker.
The most straightforward way to import is to import "stamps".