I assume this what you are meaning and "it works for me".
Turning layers visibility off and on
I started the sequence with the spray layer off, then added a capture with it turned on and the finished with another capture where the layer is off again. This achieves what I was wanting. Still think it would be kind of cool if you could use the duration to turn it off and on but I can sure use it this way. I think this makes more sense and gives us a lot more flexibility than tying it to a view or camera because I can use the two independently.
Here is still another version that shows how changing the views during the sequence adds some flexibility as opposed to tying the layer visibility to views (again MHO).
Controlling layer visibility and adding views
I also saw that I can group the movement sequence along with the layer visibility captures and views as a group. Again, IMO, this could be very valuable for the future.
Thanks for this feature and being patient enough to help me understand how to use this capability a little better.
Now if you just come up with some miracle way to animate the spray texture I would be more excited than you want to imagine β . π π π