I agree about presets. They are great for copying effects within a particular model track. This request would provide a method for more complex patterns.
Hopefully this feature enhancement is viewed favorably that it could be included in a future build. The Import feature already does most of the heavy lifting, connecting the right models together, then adding the necessary additional layers, if needed.
One immediate use case could be a library of firework effects, which are really a chain several different effects. Users could build a sequence from a variety of shared effect-chains.