Hey Marta, It's not impossible but what you are talking about is done this way.The allover look is usually printed first THEN sewn together.Its easier to line up after its been printed.They do make pallets that will let you print over seams but they usually are for printing over hoodie zippers and butt prints etc. I don't know how much money you have to invest but you would have to find a manufactuer that has a panel program.You print,they sew.Or they print and sew. Good luck.