Merging Courses

I’ve got a bit of a practical challenge I’m hoping someone here has tackled before.

I’m working with two separate courses right now, and I’d really like to combine them into a single course rather than manage them independently. I’ve noticed you can duplicate blocks into a new lesson, but I’m not seeing a straightforward way to move or copy content into an entirely different course.

Before I go down the road of rebuilding half the content manually… has anyone found a cleaner way to bring two courses together? Any tips or workarounds would be appreciated.