Then it's a harder difficulty map with portal paint and tbeams in a clean room

The first version is here : Madness_1 (don't play this version, the new is really better !)
And even you've played the first version, this is really different.
Good luck !
Installation :
-Extract the zip content to the "C:\program files\steam[Your steam account]\common\portal 2\portal2" folder.
-Accept to replace, else, you'll not see the icons on the sign.
-Run Portal 2, and type "map sp_madness_1" in the developper console.
Have fun ! 
File Name: Madness_1.zip
File Size: 1.83 MiB
Click here to download Madness_1.3.3
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), and highlight one brace and it will show you the matching brace. The best part though is that you can collapse the nested levels and get a better view of the hierarchy in the file. Great for files that have 20,000 lines as in Crysis. And you don't have to associate every new file type with Notepad++. Simply right click on the file and select 'Open with Notepad++', even binary files.