I just noticed this tutorial: https://community.withairbnb.com/t5/Tips-Tutorials/Setting-a-Weekly-or-Monthly-Rate-A-Community-Help....
Funny, I had seen the sentence "You can also set a custom price for a specific week or month" but could not figure out how to do it. The reason I didn't find the solution is because the words 'week' and 'month' do not appear to be links. But they are. It would be such a simple fix to highlight those words with an underline, bold, or different font color!
The only downside of doing it this way is that you can't use smart pricing for those weeks. Previously I had set only the *minimum* nightly price and minimum length of stay. That way if certain nights were more desirable and priced higher I would still get the benefit of smart pricing. But I guess we can't expect to have it all 🙂