Hello Silkscreen is covering the whole PCB design as long as you are not removing it on your design. About the Order number removal, kindly check the following link : [https://support.jlcpcb.com/article/28-how-to-put-jlc-production-id-at-a-specified-area-on-the-pcb?_ga=2.71581594.807130309.1641151950-1865388022.1590056196](https://support.jlcpcb.com/article/28-how-to-put-jlc-production-id-at-a-specified-area-on-the-pcb?_ga=2.71581594.807130309.1641151950-1865388022.1590056196)