1.Install SweetScape 010 Editor.
2.Download

and

and place them in [...]\My Documents\SweetScape\010 Templates.
3.Download

and put it [...]\My Documents\SweetScape\010 Scripts.
4.Open SweetScape, File/Open File and browse to Cabal maps.
5.Now you have to load the MCL Template.Follow the screenshot and do exactly as I do.
6.You do with the script exactly with the MCL,load the WallHackScript.1sc and press F7 and wait for SweetScape to execute it.
7.Last step is saving the map.File/Save and you're done.
LETS HOPE THIS TIME NOOBS WILL GET IT RIGHT!
I have to post this again to show nabs how to do it...