Feature request: "Read More" page break to put content in front/behind paywall

Would like a feature where we can insert a sort of page break in-line into an article asset in Blox that would put everything before the break in front of the paywall, and everything after it behind the paywall. So for instance, we could insert a "Read More" page break after the first 3-4 paragraphs of a story, so readers would be able to view those 3-4 paragraphs for free, but when they click on "Read More" they would be prompted to log into their existing account (if they weren't already logged in), or sign up for a subscription.