I have 55 products on my site, and would like to custom order the products. To achieve I used Menu Order on Advanced tab. The order works fine. However, when I put number like 7000 to make sure it shows last, the system automatically changed it to 55. How do I prevent this happening? I used big number so that I can change the order easily next time.(I put number 10, 20, 30 instead of 1, 2, 3)