In many cases, the special effects in a Cinema can be very hard to be controlled. But we need to pause or slow down the Particle in Emitter actor and Effect in Niagara actor, so we can realize some great effect. For example you may want to pause the raindrop in a rainy day scene, the specific blueprint is necessary for controlling the emitter. You can use my plugin for that purpose just by dragging an Actor Component under the actor or put another one under the sequencer. It's also very easy to make a slow motion of particle effect in your scene, just like the feeling in a Hollywood blockbuster.
You don't need to worry about the package of the project when you use my plugin. I have tested the publishment on Windows platform. After a few steps, you will make an amazing visual effect. In Niagara actor, you need to set the Speed Limit parameter in Solve Forces And Velocity property as user input like the example asset in my plugin.