I’ve been using OmniFocus with a bit more (ahem) focus this go around, aggressively using defer dates, Forecast perspective, and the integration with Apple’s Focus feature. Having farted a bit with Shortcuts, I got interested in what OmniAutomation might open.
It didn’t take much searching to find the Task-Date Controls plug in. It allows you to change multiple defer and due date metadata specific to the item’s current settings. Very cool, and it syncs across iCloud.