If easyeda pro could check DRC using exactly the requirements that JLC use, this would hugely improve the user experience and benefit easyeda group immensely.  For example, you could select in a menu that this is a 2 layer, flex pcb, and easyeda check to see that it passes JLC capabilities. Benefits: 1) JLC has less errors in board orders - thus saving JLC time and money checking and less contacting customers. 2) User does not waste time emailing back and forth with JLC support. 3) User gets board orders faster. <br> This would hugely improve the order process.  @dylan