Multiple file-upload when using the Web interface is supported.

If you use Chrome, Firefox, or Safari, multiple file upload directly from the Web interface is supported without any additional plug-ins, extensions, or add-ons. These browsers support multiple file upload natively.

If you use Internet Explorer 9 or Internet Explorer 8, Adobe FlashPlayer must be installed and enabled in your browser. It is a browser add-on that can be enabled or disabled under Tools/Manage Add-Ons. Internet Explorer does not support multiple file upload natively. If for whatever reason, your Flash add-on is broken, you can always upload single files using Basic Upload and Overwrite and Basic Upload and Index when you click the Upload button inside a folder in the Documents section.

If you select either Basic/Multiple Upload and Overwrite, if there is a file with the same name in the destination folder, this file will be automatically overwritten. If you select either Basic/Multiple Upload and Index, if there is a file with the same name in the destination folder, a new file with the same name followed by an index number in brackets will be added to the folder (e.g., FileName.Doc, FileName[1].doc, FileName[2].doc, and so on).