Player's Companion Proficiency Progression Table?

I’m reading over the Player’s Companion once again and I noticed there wasnt a Proficiency Progression Table for the 18 new classes. Did I miss it somewhere? Am I missing something?

How does Proficiency Progression work for Custom Classes as well? I’m not seeing this covered anywhere… But then, I could just be blind lol

Proficiencies gained are based off saving throw progression. See page 56 of the ACKS core rulebook. I just cross-reference against fighter, mage, thief, and cleric. I hope this helps!