Moodle in English

Hi people, I create this post to explain my problem and ocasionally find some solution: I want to use the external tool called OwnCloud to create a "virtual disk" for every course admin. The behavior i want to obtain is that if i put some files in a local folder on my pc, these files will automatically being uploaded into Moodle's running server and then, using filepicker i'll can select these files without upload another time because are already uploaded, a function similar to dropbox but implemented in moodle's server. The question is if there are some plugin that do this function already, because if it is already created, I will use my efforts to develop something else. Thanks for all answers in advance !