To add to #2, the fill effect may do what you want as well. It sounds like you are coming from Vixen. There really isn't a direct replacement for the chase effect, but many ways you can mimic. One option is to use two identical effects, the first will be used for the chase, the 2nd attach it to the first and check persistent. This will hold the effect.
It will take a little time to get used to all of the options available to you. I have yet to find something that can't be done.
James
Sent from my SM-G900V using Tapatalk