eirik -For unstructured container parameters that are passed to a sequence, there is no simple way to discover the contents until runtime. For the results, there is some documentation in the Ref Manual that discusses the subproperties of a single result. What I have done in the past is: 1) place a breakpoint at the location the run-time variable will exist, 2) run an execution and break at the location, 3) copy the variable from the variables view, 4) one a new sequence and paste the variable under locals to capture it, 5) complete the execution, 6) save the new sequence file, 7) use the variables view to browse the property. Sometimes I actually copy the variable and replace the parameter in my sequence so that I can test my sequence without all the overhead of the model. Hope this helps....