Yes indeed @kvlschaefer, thanks for tagging me in here! We recently released line item discount support for HubSpot Payments which it sounds like is exactly what you're looking for! Order level discounts are indeed on our product roadmap and we'll likely see this feature in the second half of the year
Also @grant_growup very happy to hear you're enjoying the tool as well. If you ever have any feedback or anything else you'd like to discuss, go ahead and DM me and we can go from there (this offer stands for really anyone, not just Grant 😀)