The quick_editor_guide.pdf file you have requested: Tools and Utilities / Quick Map Editor Guide (1.0) - 1.75mb is not available. Perhaps try browsing all files for the game Supreme Commander and upload any files you want to share or are missing. This is the only information we could locate:
This is the first guide for the new official Supreme Commander Map Editor. It is very graphical, with plenty of pictures so that you can understand map editing and making more easily.