Daily dividers in the task list

A lot of times, I prioritize my task list by sequence. For instance - here are the tasks I’m going to do before lunch, then here are the tasks I’ll do after lunch, and here are the tasks I’ll do after dinner.

The problem is that they’re all kind of messy when in a big list and it’s overwhelming.

I’d like the ability to add dividing line(s) in my to do list and label them with what they represent in my day.

Even better - I’d like to be able to collapse them so that everything below them gets hidden. That way I can just focus on the things that I need to get done now.