It's now possible to create tasks at the top or bottom of a day's task list via the "Add task" shortcut (both in app and the global add task shortcut).
Here's how:
  1. Open up the Add task shortcut:
    CMD/Ctrl
    Shift
    A
  2. Create a task
  3. Toggle the task to the top or bottom via
    CMD/Ctrl
    Shift
    Up/Down
    or click the arrow icon to toggle it's position.
This should make it easier to add new tasks to your day without disrupting the flow of tasks you've already set!