New formats are created, and existing formats are modified using this editor.
*Format name: The name of the custom format. The format name can be any string, it is used only to recognize the format later on the {{man label|Display format}} list.
*Format definition: The actual format is defined here using special formatting characters. Before and after these special characters any other character or string is allowed. For example: "(%t) %L, %f" will give <TT>''"(Dr.) SMITH, Edwin"''</tt>. The formatting characters are: