Editing SMMU (section)

==The level header==
A 'level header' is the wad resource which starts a level. For example, the level headers for all the original doom levels were all in the format ''MAPxy'' or ''ExMy''.

In Eternity, the level header can take any name, for example, the SMMU 'start map' had the name {{c|START}}. Levels with nonstandard names can be accessed from the [[console]] using the "map" command, e.g. "map start".

Additionally, Eternity automatically detects new levels loaded from wads and will start on the appropriate level when the 'new game' option is chosen from the main menu (only if the "start new game on first new map" option on the Eternity Options menu is set to "yes", and only in DOOM II).