Adding collaborators to a task submitted by a form based on QTY field

I have an Asana form where it asks how many people the requestor would like.
I was wondering if there is a way where you can create a rule that says if the QTY Field is more than 1 it adds X person as a collaborator without using 3rd party plugins.

No, a numeric custom field can’t be a rule trigger natively in Asana.

Thanks,

Larry