Hi, I'm currently creating my first PCB lib, but I don't know how to add a slotted hole. I want to add a Hirose UX60-MB-5S8 USB connector ( http://www.mouser.com/ds/2/185/Hirose_UX%20Series-540795.pdf page 5). I started with the placement holes and the signal pads which whas easy to do. ( https://easyeda.com/fbruckm/component/UX60_MB_5S8_USB_Connector-iCbLlVTR2 ) Can someone please help me with this problem. Thank you in advance Felix