Ah, I see! That was also unclear to me. I also don't understand what you mean when you say that the whole group has these checks. When you roll, are you rolling for the whole group, or is an individual player rolling for themselves?
Also, does this mean you're rolling for all checks when you roll the dice? If not, if I'm rolling for one check, why wouldn't I always choose the highest number for that check? Or maybe you choose which number goes to which check at the start?
I hope I'm not coming across as rude. I am genuinely trying to understand.