How do I input a live load surcharge for abutment design ? The input screen is unclear. How do I set the offset from the back of the abutment ? How do I set the application point of the load along the height of the abutment ? Can I use a live load surcharge without having a load for LL+I ? I'm trying to check the abutment capacity without the superstructure in place, for a crane load for setting beams. Any response would be greatly appreciated.