Click once on this icon to minimize everything. This feature is handy if you're typing a document and need to keep track of the number of words in it. Once you've finished typing, place your cursor at the beginning of your document. The Word Count window will appear showing you the statistics of your document such as the number of Pages, Words, Characters with no space, Characters with spaces, Paragraphs and lines. There really is not all that much to it.
All documents are closed.
But the only way you know how to delete the items is to remove the entire Documents menu. All the items listed in the Documents folder are right before your eyes. Just delete what you want and nobody will ever find out.