This is possible with the H90 using 1:1 Program Changes, you just need to create your H90’s List in a way where the Program numbers match the Program numbers of your Amp’s Program numbers.
How many different amp settings are you using? It shouldn’t be very difficult to have this match up with the H90’s Programs.
Personally, I prefer 1:1 Program Changes on all my devices since it is a simple way to think about everything. I always know that my synth/H90 will share the same Program numbers, and I can create my lists accordingly without having to think any further.
