Important points on using Cosmo Editor v1.0.

Always keep a back-up of the file or files you are editing, COSMO1.VOL, COSMO2.VOL, COSMO3.VOL.


There is an option in the editor that lets you clear a level.

Never do that since you have to keep the lower-most line in each level as it is otherwise you will corrupt,
not the present level, but the following one!
The lower-most lines are not visible from within the levels while playing the game.


The program will always save a Cosmo start position at the upper left corner of the level you have edited
(at least if it is substantially changed).
You can't avoid having Cosmo start at that position in a new level
so you ought to design your levels so that Cosmo will fall down to where you want him to start
(at some position at the left end of the level).