When we add a subscription, say $10/month for 1 year, to a "Deal", its lifetime value is $120. We see this projected in the charts under "Insights".
However, this deal isn't closed yet. When we press "Lost", the subscription remains and the amount is still visible in the charts.
What would work in our flow: We add a Deal and attach a subscription to it, but we only want it "active" i.e., counted in our revenue after the deal has been marked as "Won", not during it's still open.