The aforementioned menu would allow you to set up spells and abilities to autocast and items to automatically use every time you do a Long Rest. Spells and abilities like Bind Pact Weapon, Mage Armor, Armor of Agathys, Speak With Animals, Longstrider, Summon Familiar, Summon Elemental, etc. are often spells you'll want to cast after every long rest. Instead of forcing us to actually do it, why not just have a "Morning Routine" macro built into the game? It would be extremely convenient, especially on buff-heavy builds, and help new players by allowing them not to have to memorize a list of useful spells to cast every day.
This doesn't sound like it would be too difficult to do, and I hope if Larian doesn't add it someone mods it in soon.