To do a bulk upload:

1. Click on Upload drop-down button from the top left side panel and select Bulk Upload option from drop down menu
2. Select a folder to place the document from the left side panel
3. Click on Select files to upload option
4. Select multiple files and click OK
5. Click on Upload button, the files will get uploaded to the selected folders.

Note:To select multiple files, Please hold down Shift or Ctrl key.