Subscription Length / Installments

Hello:

I have a client using this plugin to allow people to make installment payments for training (2 installments or 4 installments). In talking with Stripe, there is no way to set up the subscription to end after 2 or 4 months within the Stripe dashboard. They have told me this needs to happen with the plugin I am using. Is there a setting that can do this, or what would it take to have a subscription end after 2 or 4 months?

Thanks so much for the assistance.