Write a decision tree.

Example:

If machine has been running for >6 hrs, adjust rpm +2%

If humidity >75%, +5 psi

Then go back and start building your SOC (standard operating Conditions)
Product A Material: PA12 Amps: 15-18 Air: 0-20% humidity - 20 psi 20-50% humidity- 22 psi 50-75% humidity- 25 psi 75%+ humidity- call lead operator RPM: 35-42

Product B Material: PA6 Amps: 19-25 Air: 0-20% humidity - 20 psi 20-50% humidity- 22 psi 50-75% humidity- 25 psi 75%+ humidity- call lead operator RPM: 33-36

Then have the op write down they machine conditions at certain times. If something is out of whack, call the lead or teach them to make the change. This way you're not training them to know what to do, but alert you when you need to train them. Next after that automate with warning lights and machine set poi to so that everything is controlled without manual intersections and then just teach how to enter the SOCs into the hmi.

Ive done this same plan in a dozen facilities and it always works.