A friend's hubby bought an industrial? machine, in Mexico I think. She says it sews like a whiz the straight stitching, but she can't figure out what else it will do. Primarily, she would love to have some sort of instructions to help her use it. I offered to post a pix and ask if anyone here knows anything. She said the red tipped attachment will lift a little bit, and she's curious about the lower front screw/knob--says something moves inside when she turns it. She/I would be so appreciative if one of you experts could tell us anything about it, or where to learn more. Thanks!