Privilege Set and Individual Privilege

Hi!

I have a situation here at my company that all JIT accounts must always have a default set of privileges and a special individual one, which will determine which customer of ours they will access (we have a bunch of specific configurations that depends on which customer he will support).
However, when I'll set the privileges when granting checkout, as you can see bellow, only the permission sets are available to select, but the other ones aren't (CCA, FOR or MAT)...



Can you please tell me if there is some configuration I'm missing to make them both available (the privilege set and the individual provider privileges) to be selected? If there's not, I believe it would be a great feature...

PS.: While I was writing here for you guys, I did another test creating another Privilege Set using one of the others provider privilege we have and now it's available... That means that when you enable privilege set, only them will be available, right?I believe it's too much work, since we have more than 85 different customers and we already have to pinpoint each group in provider... :P




Thank you!

Regards,
Elaine Berenguer