Yes you’re able to create multi step funnels. We don’t have an explicit feature for this, but you can create a “funnel” by linking the CTAs on each page to the next.
As for these specific pages your client requested, we don’t support checkout > upsell 1 > upsell 2, but here are some templates you can use for the other pages:
• Advertorial: https://dashboard.replo.app/home/template/5d762e78-f7da-4499-94de-ad6b4396f418
• Product Page: https://dashboard.replo.app/home/template/fe749b97-3391-482d-beaa-51d86ba63662
As for the upsell parts of the funnel, we don't support it directly within Replo, but there are apps such as Rebuy that can help you out there!