Not sure if it will 100% answer your question but Tools on Tech on Youtube has a “Starter Kit” video which has a section on Todo Lists and organising them with queries and priorities.
I have been implementing some of this in my Logseq.
Thank you, that is a good video, what he says at about 5 min how to use the sidebar is very useful.
Where I run into limitations is when I have a lot of sub items, let’s say a shopping list with many items.
Currently I paste, and then go through item by item with ctrl-enter to change the todo state.
I found this query to exclude sub-items from a search:
Hi, it’s me, the guy who wrote that query! to answer your original question, you can just select all the items and hit cmd+enter or your os equivalent. alternatively, you can right click on bulk selected items and select “cycle todo state” or something along those lines.