I have been trying to get rid of "trash" in my drawings. I have cleaned up the drawing, but I cannot delete levels that are showing as "unused". I have several levels that are not used, and will not delete.
fudaspan,
If it is all that important, Key-in LEVEL DELETE. Open the key-in dialog and you can see what kind of commands are available, experiment with them and you will find out things without having to use the help menu. I have all my new techs look through the commands to get a feel for it.
Regards,
Namdac