Synth Control for Beginners!

Hi

Can anyone point me towards a guide on getting started in this area? Essentially I would like to use NI’s Massive as an instrument in Dorico and then indicate (in the score) and change: preset/sound changes & synth controller changes. I’m assuming I will need to set up some novel playing techniques e.g. Change Sound to: followed by a description of the patch name and a control direction such as Phaser to: followed by a value (though Massive doesn’t seem to indicate individual values). Thereafter, I’m guessing I need to set up an Expression Map to link the technique to the Synth?

Stranger in a strange land over here! All getting started advice gratefully received.

Many thanks