I'm not sure about "Today", but the other ones come as standard. I had to create some of them myself since they weren't created by default when upgrading.
when I tried this before, it only worked for one folder - I want the tabs back for all folders in all accounts! Is that possible? - if not I'll raise a ticket
I got the tabs to work! I created Today and This Week tabs as well. These need slightly different settings: Under List, set ‘current message list’ rather than ‘Current folder and its subfolders’