The best place to start is to start a new file.
(list=1)
() Select "New World..." from the File menu.
() You will then be presented with info for your world file; the purpose of every single entry field is explained in the documentation, aside from the clarifying "World Name", "First Level" and "Last Level".
() Once this window is dismissed, you will be asked to name your file.
() Dismiss this dialog box, and the info box for your first level will appear. Dismiss it for now.
(/list=a)
The easiest way to approach making your first level is to copy level info from another person's level. This is done by opening a level you admire in MASCOT and selecting "Copy Level Info" from the Edit menu. Return to your level and select "Paste Level Info". All the entry fields will be filled in for you, although you are welcome to change these values as you please.
(This message has been edited by spamguy (edited 12-16-2000).)