Trying to add quantity selector to subscription based payment

Hi, I was able to add quantity selector for the product based payment (I'm using Stripe) but not when I want to do a subscription based payment. This is a problem as I'm trying to create a form which more than one person can sign up for our membership on the same form, but instead of it just being a one time thing, our membership is auto-renewing subscription. How can this work?

As you can see in this form: https://www.jotform.com/build/71806474184158, we were able to do it for an individual membership but I want to enable multiple applicants on this form.

That is not possible, you can only sell one subscription per submission. So, if another person wants to buy a subscription, they will need to open your form and fill it again.