@nathank Shift (months) shipped in v1.1.0.
The review page now has a Shift (months) field next to the Date rule dropdown. It defaults to 12, same behavior as before, but you can override it per run. There’s also a new event_duplicator_default_shift_months site setting if you want a different site-wide default.
It works with both date rules. A monthly or quarterly series that needs a specific weekday still gets the “same weekday of month” treatment, just at whatever month interval you set instead of a fixed year.
Update to v1.1.0 to get it (rebuild if your app.yml pins a specific tag). Issue #19 has the implementation details if you’re curious.
I think it makes sense to also update the OP. I’ll get to that by tomorrow, probably.