If you have more than one set of particle nodes, and you want to combine them into one stream, ParticleMerge is your node. You can merge as many particle streams as you need into a single ParticleMerge.
1. | Connect a ParticleMerge node to other particle nodes at any point in the particle stream. |
2. | Attach another particle stream (or a ParticleEmitter node) to another one of ParticleMerge’s numbered inputs and you’re all set. |