Upload a zip file to the Resources tool and then expand within the tool to automatically add all contents.
Select the Resources tool from the Tool Menu of your site.
Drag the zip file from your computer and drop it in the Drop files to upload, or click here to browse box.
Click the Drop files to upload, or click here to browse button. This action will open your computer's file upload window where you can browse for and select the zip file that you want to upload.
A thumbnail image of the zip file awaiting upload confirmation will display in the Drop files to upload, or click here to browse box.
Click the Continue button that's near the bottom of the page to confirm the upload of the zip file.