Create a separate holiday entry for year 2019 thanksgiving only .
And for other years let it be recurrence.
Thanks; that is what we did.
It would be helpful if we could group days together; So we could have an N-day business holiday (in this case 2) that begins (or ends) on a particular "date" - for Thanksgiving it would begin on the 4th Thursday of the month.
Should I submit this as an enhancement?
yes,that will be fine.