Quickie Help:

Choose a Game and Level from the menu
The Map will automatically resize as the Window resizes
Use the "+" and "-" keys to Zoom in or out
To center the map on a different spot, CTRL-LEFT mouse click on the spot.

Click on an object to see what it is.  To move an object, just
drag it to the new spot.  To change an object, Right-Click on it. 
Changeable attributes include type of object,  angle facing
(important only for monsters), Levels it appears on (marked '1/2',
'3','4' referring to game difficulty levels), network only (marked
'net').  The meaning of the other bits is as yet unknown.
The Five buttons represent the Object Types:

K: Keys (and Player Start positions)
M: Monsters
A: Ammo and Weapons
G: Goodies (potion, armor, stuff you can pick up except weapons)
S: Scenery (including barrels)


You can also edit Sectors.  Choose 'Sectors' from the edit menu. 
Click on a line segment on the map to highlight one of the sectors
that segment borders.  If the segment borders a second sector, click
on it again.  Right click on a sector to edit it.  Editable
attributes are Floor Altitude (-262 to 262), Ceiling Altitude (same),
Floor and Ceiling Textures (sorry, no preview yet!), Brightness
(0-255), and Special Attributes.  The trigger number is shown but not
editable yet.


Menu Options:
Save as BMP: Saves the level as a Windows bitmap, for printing.
Save: writes your changes back out to the .WAD file
Revert: reloads the level from the .WAD file, erasing your changes.
Export: exports all level data to a .LEV file 
Import: Imports a .LEV file and writes it to the WAD file.

