In your registered copy of EZ-CAM on your PC, load or create a part.
Then from the "Machining" menu select "Verify All", then "3D Preview", and then "EZ-WEB Tools".
In the EZ-WEB Tools dialog, select an EZ-CAM Online user account from the list of users
(or add and select a new user account via the "Add User" button).
Click "Upload to EZ-CAM Online" to upload the currently loaded part to the selected user account.
In EZ-CAM Mobile Tools on your mobile device, select "Refresh" from the ellipsis menu to view and edit the newly uploaded part
in the "Data" tab, or play its preview in the "Simulation" tab.
When you are done making changes to your part in EZ-CAM Mobile Tools and ready to update the part on your PC,
return to EZ-CAM and, with the same part loaded,
click "Download Part Info" in EZ-WEB Tools.