Great! Thanks for the info.
So I'm assuming that I need to use the "Off" effect depending on what it is that I'm doing. For example, if I have an effect on All for 10 seconds but within that 10 seconds I want to show a different effect on one of my models for 2 seconds right in the middle. Then on that lower model I would add an Off effect for 4 seconds, then the effect I want it to do for 2 seconds and then another Off effect for 4 more seconds. If I don't do this then the time around the effect of the lower model will be filled in by the effect from the group. Correct?