I guess I should have mentioned I want to do these things on the mobile version, with my iPad. I looked at your link and it doesn't work with iPad even when I don't use the app and actually go to the web site.
Perhaps I just don't know how to do this, but I would like to be able to manually sort tasks and sub tasks. At least within a priority category. For sure with subtasks I like to have them come up in the order I want to do them. If I omit a subtask and later add it, the order is off. If this is not possible, please consider it as an upgrade request.