How to design on template and make it ready for printing?


I have a question regarding how to design on this template I received.
I´m gonna make a design on this template and then send it back. ready for printing/manufacturing.
Last time i got a template, it was just a "2D" flat pattern. which was easy to design on and make logos on arms etc.
This time, it´s more like a "3D" template. How do i make logos/design on arms etc, since i cant rotate it?
Is it possible to make some kind of flat pattern out of this one, or how do i make it?

Best Regards