I'd like to be able to produce a TODO list that is sorted by timestamp independently of category. I'm still new to elisp and so don't yet understand all the code involved. What I've been able to do so far is create a separate version of org-todo-list by changing a single line:
(org-set-sorting-strategy 'timestamp-up) ; was 'todo however that appears to sort by timestamp within categories, not across. Is there a relatively simply way to have org-todo-list ignore categories?