[TxMt] filters in the file browser

[Artie Ziff]

Hello,

I see a list of variables on this page:
<http://tm2tips.tumblr.com/post/14262423719/list-of-settings>

excludeFiles
excludeFilesInBrowser
excludeInFileChooser
excludeInBrowser	
excludeInFolderSearch

Is there a doc that describes what each one does? I tried using a few of 
them to filter the contents of the File Browser.

I must not understand how they work... I am having difficulty
filtering the Apple Double files from view in the File Browser.

apple_double = '._*'
excludeFilesInBrowser = "{$exclude, $apple_double}

thx!
AZ