To upload files to a family, follow these steps.
Note: File Uploads need to be enabled by the Main Admin for the account. See article Enabling File Uploads
1. Navigate to the family. Click on File Upload
2. Choose File. Select File. Upload File.
Select file from your computer. And click Upload File
3. File Upload Successful
To view the files, you will need to log in to your dropbox account. Visit Tracker will just organize the files for you and make it so you only need one Dropbox subscription.