Questions about applying for parent route FLR (fp)

Hi
Hope you are well to whoever is reading this and is safe.

I’ve got some questions about renewing my aunt and uncles permit as parents of a British child using FLR (fp) online form.

Do I apply 1 time using my aunt as the main person and uncle as a dependant on her application. (They are both married to each other) or do I make two separate applications?

They both was grantWe the permit together on one letter If that’s any help.

My aunt got help from a solicitor helping them apply the first time but because of Covid 19 and being out of work I’m trying to save them a bit of money on solicitors fees as I have filled in 2 forms for my husband and mother in law but using the help of this website.

I will be forever grateful to whoever can help me

Thanks