First you need brawl box at least V.6.3b a stage pac file (If you want a clean stage pac message here or give me a PM) but if you have one already ignore what i just said...
1. Open brawl box then where it says file click that then click open find your stage.pac file then double click it.
2. In brawl box you should see these three files: 1, 2, ef_StgXXXX the X's is the stage name battlefield would be ef_stgBattlefield...but you only need file 2 so moving on...
3. Now double click file 2... then you will see a lot of model data's they are the red files
scroll down you will see texture data... but you don't have to go near those files for this subject...
4. Now when you scroll down you will see this blue color file it name is Misc Data but some times there is four and goes down too one now on delphino plaza there is more then one...
5. Right click any misc data that is a blue color file ( not the white misc data's those are for something else) after you right click left click Preview
6. Now you see the stage and as you see there is these little blue and white squares DON'T touch those because that might mess up the stage.
7. Now on your Keyboard there is a button in the row by the Space button called Alt press and hold then with the other hand put it on the mouse and left click and move around and you will see that you created your own collision now you can let go of alt and mouse.
8. if you don't like where you put it then left click and drag the piece of collision that you created somewhere you would like to put it.
9. when your done close the preview the go to file and click save and put it in pf/stage/melee and then run either gecko or riivoultion and your done
Hope i helped
