Hi @marcmayo! This is a great question. There are two types of customer data that can be displayed in a flow: profile data (like custom profile properties), and data from within the event that triggered the flow (in this case, Viewed Product). This means that there is not a way to pull in data from other events, except for the specific event that triggered the flow. 

However, you can achieve something similar by using multiple flows (one triggered by Checkout Started, one triggered by Added to Cart, and one triggered by Viewed Product). Just make sure to use Flow Filters, so a customer doesn’t receive all three flows! (For example, you can include a flow filter like this on the Add to Cart flow: What someone has done > Started Checkout > zero times since starting tis flow. That way, those who do start a checkout will receive the Checkout Started flow instead of the Add to Cart flow.) 

Best,

Elise