invisionstudios

Here's the link (altered to protect the innocent): http://www.mydomain.com/orders/cart.php?a=add&pid=1

I'm trying to get a button that's located elsewhere on my site (in a comparison chart in WordPress) to link directly to a product in WHMCS. I copy the LINK from the product setup page (Products/Services -> Edit Product -> Links) and paste it as the destination for my button, but the target page is showing ALL the products in the group as radio buttons, with the target product pre-selected. I'm trying to have the user go to the individual product they select, not a GROUP page. I can't find anything in the Docs that speaks to this. I'm using the default template for my WHMCS pages, FWIW. I think it's too confusing for the user to see all those products. Do I have to put them in different groups to get the behavior I want? Any thoughts on how I can achieve this?