I do not think that there is a "meta-plugin" that allows you to upload other plugins and copy them directly in your "qa-plugin" folder (a sort of "file-transfer" plugin).
At the moment I think that the only solution you have is to manually copy them under your qa-plugin folder with classic ftp ![wink wink](http://www.question2answer.org/qa/qa-plugin/wysiwyg-editor/plugins/smiley/images/wink_smile.gif)