Moving an individual piece of content
Navigate to the file you wish to move and select the "Settings" button.
Select new location
In the overview section, you will see the current location of your media. Select "edit" and choose the new location for your media and then save your changes. You can move the video to any folder to which you have creator level access. Your content will now be located in the new folder destination.
Moving a folder
Navigate in to the folder you wish to move within Media Library. Select the "folder settings" gear icon in the upper right corner.
Select new location
In the overview settings, you will see the current "parent" folder in which the folder resides. Click edit and select the new "parent" folder, then save your changes. You will be able to move the folder in to any folder to which you have creator level access. The folder will now be located within the new folder you selected.