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Stamps can be spawned and configured using the Set Stamp and Add Stamp nodes in Blueprint. The Set Stampnode is used when setting values on an existing stamp actor or component. TheAdd Stamp node is used with Voxel Instanced Stamp components. The voxel world is automatically refreshed where needed when stamps are added or updated.

WARNING
Use the Make Copy node!
Stamp pins work like references. If you call a Set X node on the variable directly, it will change the value of X on the variable itself, not just on the stamp you're spawning with it. The Make Copy node copies the variable into a new one, so you can change values on it without changing the original variable.