Can you limit qty of addon?

If I have a subscription plan, I want to be able to add a feature addon to the subscription. During checkout, it allows the customer to add multiple quantities of this addon, but it's just a single addon. I can't sell it x 2 or 3.

How do I limit an addon to a single item?

Hello @FredFredrickson ,
We regret to inform you that, currently, we cannot restrict the addon quantity added in the checkout page inside Pabbly Subscription Billing.

We kindly request that you submit this as a feature suggestion in our forum. If we receive multiple requests for this feature from our users, we will consider its inclusion in Pabbly Subscription Billing after assessing its feasibility. Please find the forum link below
https://forum.pabbly.com/forums/features-requests.26/