How to attach a document in iCloud from Mail?
No way to find iCloud from the select file view.
MacBook Air, OS X Mountain Lion, 2,13 GHz Intel Core 2 Duo, 4 GB RAM
Type this into Finder's "Go to Folder," /Users/Your user name/Library/Mobile Documents
You'll get something that should like:
It's not the actual iCloud folder, but it's a copy of the files that are there. If you change the contents it will be changed to match on the iCloud.