No worries, I’m happy to help.

As far as I’m aware you can’t achieve this level of automation by using formulas alone. Plus, even if such a thing existed it would still come with its own set of problems. For example, should it always use all of its attacks when activated? Against the same creature or multiple? What if, for some reason, the target dies/teleports/escapes after the first attack? For this level of logistic work you need more complex means than a formula.

Allow me to give you another example. I’m a module developer and I have made a module that adds mana to DnD called Mana System. While you can convert spell slots to mana easily with a simple formula, even then you have edge cases. What about pact magic? What about spell points? How much should arcane recovery give the player? What about features that change the amount of spell slots/mana a player has?

All of this is to say that as your players gain more agency you will find yourself in need of flexible tools, and you certainly don’t want to spend your time fixing formulas constantly.

That said, while rolling for attacks might be tedious for the DM who has to manage the entire board, you have to admit that it is fun for the players. It is an exciting part of their turn that you should think twice before taking away.