I want to claim 0% on the 8962 form from the 1095 of the allocation of percentages for the shared policy.

I am on my parents 1095-a form but was only on there for 9 months. I want to claim 0% the shared policy but when I do, it doesn't autofill the rest of the information on the 8962 form unless I put an actual percentage. Do I have to manually fill it out and do the calculation? Is there a way to have my 8962 auto-fill with the rest of my tax information?