Using multiple cue stacks that reference one another

Hi there! I'm a newish student lighting technician and using multiple cue stacks for the first time. 

The issue is as follows: 

I have an effect that I want to run throughout a very long section of a show (extremely slow changes to specific lights). Whilst I know I could do this using a single very long fade on one cue, and this is what I currently have set up, this doesn't feel like good practice, especially when there's a series of similar effects that run at different points in the play. I want to set up a second cue stack that handles my longer effects and have cues on the second stack be triggered by specific cues in my first cue stack. I've looked online but just found other posts on this forum that don't quite give me the answer I need. I'm using a nomad with my laptop with eos 3.3.3 running on it. Any and all help is appreciated, I want to learn as much as I can. 

Thanks! 

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