todo-mode: Item Prefix
11.2 Item Prefix
================
In the default display of (real or virtual) categories in Todo mode,
Todo Archive mode and Todo Filtered Item mode the items are visually
numbered in ascending order, starting with ‘1’ on the top item,
displayed to the left of its header (date/time string). With todo items
the numbers indicate each item’s priority in the list, so when you
reprioritize an item with ‘#’ or move it with ‘m’, these numbers make it
easier to choose the item’s new priority. The numbering also lets you
to see at a glance how many items there are in the list. When an item
is inserted, deleted, or moved, the numbering is automatically updated.
In Todo mode, the todo and done items sections in each category are
separately numbered.
If you prefer not to have item numbering displayed, disable the
option ‘todo-number-prefix’; then the display of each item starts by
default simply with its header. But you can also replace the numbering
with a visually distinctive string of your choice by customizing the
option ‘todo-prefix’ (the empty string by default). Another alternative
is to temporarily hide the item numbering:
‘F N’
‘N’
Toggle between displaying item numbering and displaying the
‘todo-prefix’ string in the current Todo file (todo, archive, or
saved virtual category of filtered items). (This command also
works in buffers of filtered items that have not yet been written
to a file.)
In the todo items section of each Todo mode category, the item prefix
(whether a priority number or a fixed string) of the top priority items
(determined as specified in 
Filtering Items) is displayed in a
face (‘todo-top-priority’) different from the face of the prefix of
non-top-priority items, so you see at a glance how many items in the
category are top priorities.
Info Catalog
todo-mode: Faces
todo-mode: Todo Display Features
todo-mode: Other Display Commands and Options