Hey @ADuPhene one idea that comes to mind is using javascript to change out the “purchase button” action.
For example, you have a series of checkboxes that the end user can select (add on).
With that, you could build unique payments based on all the options. Think like a matrix.
Then within the page level or module level, you could have the javascript then select the right payment link to redirect the user hits the purchase button.
Which would take them to the direct payment link to complete the purchase.
This isn’t a pretty solution but a solution that would work. 