In my global TODO list (
M-x org-agenda t), items are grayed out when a parent is marked as
ordered and they have a previous sibling that is not DONE. For example:
* TODO Bake Cookies :PROPERTIES: :ordered: t :END: ** TODO Buy ingredients ** TODO Mix ingredients ** TODO Put in oven
All four items show up in my global TODO list, but all are grayed out, except item "Buy ingredients". That makes sense, and I like that behavior. But I'd like to go further and completely hide the later items "Mix ingredients" and "Put in oven". In reality, my lists are longer and hiding these dependent items would help un-clutter it.