So i'm coming back from a 3 year hiatus from affiliate stuff and I was previously a high volume
Thanks in advance.
Hi @kokiryu,
Just found your question here and I want to tell you that in CPV Lab you can track such complex funnels with a Landing Page Sequence campaign. This allows multiple levels of landing pages and multiple offer groups, as well as linking between them in any way you want.
This campaign type is great for listicle-type funnels.
So you can have a Level 1 LP with the 5 CTAs, then 5 Level 2 LPs (one for each product) and 5 different offers (placed in different option groups). The offer links will be configured to link to the desired offer in each Level 2 LP.
This setup will allow you to track clicks in the initial page, clicks in the Level 2 pages and conversions from all offers (even multiple conversions from the same visitor when this happens).
Something like this is also described in this article (the screenshots are a little old, the interface is much nicer and smooth right now
):
https://doc.cpvlab.pro/tracking-listicle-campaigns.html
FYI, in CPV Lab Pro there are 6 predefined campaign types and until now we didn't find any kind of funnel that can't be tracked with one of these campaign layouts 
If you want to give it a try, we have a 14 days free trial available + a discount for STM users 
Cheers,
Julia