ADR can be made 180 days out from the date you are calling. If you are staying onsite then you can make ADRs through your first 10 days onsite on that 180 day mark. If you are offsite the earliest you can call is 180 days before the date of the ADR. So onsite 180 days out for your first day and 181-190 for subsequent days. For offsite 180 days for all.
We are staying at WDW for 3 nights, then DCL for 4 nights and back to WDW for 4 more nights. Can we make our ADR's for all the land days at the same time up to the first ten days we are there?