Ummm, respectfully; DID YOU DO ANY RESEARCH ON THIS MODULE BEFORE YOU BOUGHT IT?
It is clear (and Roland makes it clear) that you can't load samples into the JV1010. It's a synth, NOT a sampler. The size was reduced from the JV1080 and JV2080 to reduce cost. No where in any brochures or looking at in a store could one assume that the screen was graphic or could be editited.
You need to do more research in the future before you spend your money.
The Infamous Epu.