First quantity selection field and max selection

Hi there, first of all, great plugin!

I have a question concerning the first quantity selection field and its ‘max selection’ value.
I am using more quantity fields for different categories like ‘adult’ and ‘child’. When I use two quantity fields for this and set the ‘max selection’ value for both to a higher value then the first selection field has a minimum value of 1.
So, in this case, I always have to select at least one adult. What I would like to do is to select zero adults and 2 children for example.
Is this possible?

Thanks for your help!