I am working on a ABAQUS model and i am trying to attached a subroutine to my soil elements. I know the procedure to attached it and you don't have to worry about the subroutine at all. But i need your ABAQUS skills to define surfaces , sets....etc, as my knowledge in those basics are nill. If you are already using ABAQUS with subroutine i can give the work to you or you can help me online, as i have already set up the ABAQUS environment to run subroutines. I don't need you to have any knowledge of soil, i need your basic ABAQUS SKILL.