Does CAESAR-II generate a Notepad-readable file (CII, for example) that would contain all the details of the Input File; particularly - full annotation for the input Stress Load Cases and Combinations?
CAESAR II can create an input echo in text format that contains sufficient data to re-create the input. This only contains the model input, not the load case data (the load case data can only be printed from the output module).
From the Piping Input, pull down the "File" menu and click "Print", then select "Elements". This will give you the full input echo.
Is it possible for Stress Engineer to run the Analysis not only by Cobinations but also by the singular Load Cases and hence produce the Support-Reactions for each Load Case?
Yes, but the Stress Engineer must setup these load cases.