Limiting Post submissions with Gravity Forms

Gravity Form has a the option to limit the number of form entries, Does anyone know of hooks that will let me limit the submissions per category.
Example:
blue shirt
---SM qty. 5 << so five post
---M qty. 10 << so ten post
---L qty. 1 << so one post

If this cannot be done in GForms is there another way?
Thanks!