Mapping a volume of a zone

Hi, just wondering if there is a way to adjust the level of a zone based on note value.
I’ve stuck a SineWave under some brass and I basically only wanted it to come in slowly as you get towards the end, this can be done with Key Follow ( like a synth) , but I was thinking how good it would be to draw in the volume on the Zone …

like this

KeyF - how I did it

You could try the modulation matrix. Assign key follow as source and level as destination.

That’s also a good idea thanks