I have a related product list, on the product's reader page. It works as expected.

In related product list, I have also listed the main product, so that it also shows under the related products. How can I mark the active product, differently in the related list?

Example:
- Product A,B, C are all related,
- On A's reader page, related product list A,B,C is shown (how can I mark A as active)
- On B's reader page, related product list A,B,C is shown (how can I mark B as active here)