Thanks! You can do those things if you create a free account - once your account is set up, you can exclude recipes by ingredients or keywords, as well as customize the layout of meals or create your own meal types (there's a big "Edit week" button in the top right of the planner).

There's a lot of customizability, but it's been a long-time problem of ours figuring out how to make all the options intuitive to find/use without overwhelming the user. If you dig into it any more, let me know if you have any other feedback!