This is a direct request for creative thinking. There is a deliberate effort to find alternatives. The most probable explanation immediately comes to mind. What are other possible explanations? A course of action immediately comes to mind. What are other possible courses of action? There seems to be a limited number of choices. What are the other possible choices? Code 2/6 is a deliberate request to go "beyond the obvious". Code 2/6 is concerned with "possibilities". Once you can think of a possibility, then you can explore that possibility to determine its values. Code 2/6 corresponds to the APC tool in the CoRT and DATT programmes. It is an instruction to make a creative effort.