yes, please make an file-manager plugin with an foldertree. At the moment you only see the files/folders that you clicked on. It would be nice to see the (unfolded) folderstructure, too.
And as second feature: Send a file to an other useraccount (same NC-Server). I dont mean to share an file with someone. I will send files in her/his account so i can delete them. It would be one copy-command for the server^^.