Discount Codes for Sunday - Thursday Stays only

I'm looking for ideas on how to set up a Discount Code that applies ONLY to stays Sunday thru Thursday nights. The criteria now only has arrival, departure, booked, # of guests/nights/pets. There is no option for "Staying on" days.

Not sure what you're looking at, but there are many more criteria than that - you can select "Arrival Day of Week" for just this purpose.

I’d like to apply the same discount logic for Mon - Wed stays offering the 3rd night at 50% off.  Is there a way to only have the discount applied to say WED only if nights booked are Mon - Wed.  Seems you can only apply the 50% to rent subtotal for all 3 nights.

Thanks