My approach is to typically add custom classes to elements I'm tracking. One of the classes I add identifies a single element (e.g. #product-a, #product-b, etc.). Now, let's say product a and b are part of some global conversion, I'll also add a second class to each product (e.g. #total-product-clicks). In this way, I'm able to get metrics for overall clicks as well as individual clicks. You can likely use something similar to track conversions across your funnel.
