By default, tasks are numbered according to their position on the page. Task numbers allow you to refer to tasks using Muse links. For example, the ‘#A1’ task in 2004.08.16 can be referred to as ‘2004.08.16#A1’.
Note that task numbers change every time you re-sort and re-number tasks
with planner-fix-tasks
. As a result, they are only reliable for
references to past tasks.
If you find yourself not using this functionality, you can turn off task numbers by using the following option.