This is the Godot 3.2+ version of SpawnPoints.
With SpawnPoints you can spawn your product (enemies, friends, goodies, etcetera) from a SpawnPoint node. There are both 3D and 2D nodes to help you with spawning.
Each periode seconds a number wave size of products are created and placed on the configured parent until the capacity is reached.
The product of each wave as randomly selected from the configured products.
By adding a WaveManager as a child of the SpawnPoint you can add additional waves configurations make your game more interesting.
Both 3D and 2D demos have a few examples how to configure them.