The HMI will only have the developer project if it has a CF card installed, otherwise it will just have the compiled project, which is probably not going to help you. I'm about 75% sure you can copy a developer project directly to USB from the HMI, but we don't use CF cards, so I can't check for you.
With Vijeo, you can upload developer projects, and you can "download" a project to USB instead of directly to a panel, then use that USB to install the project on as many panels as you want. The USB method of installation will also allow you to downgrade the runtime version on a panel, so if you end up with a Vijeo 6.2 project on one and need to put a Vijeo 6.1 project on it, the USB method is the easiest way.