Quick follow-up update.   I just sorted out the model saving and retrieving "challenge" by saving the models to the session as an icon.   It also allows me to rename the models which is helpful.    I have also been able to save the session.   The only outstanding question for now is Question 3 below.   Question 3: My professor works in R and I would like to be able to output the commands for my analysis, especially the specification tests to be re-run by the Prof. in R (if they wish).   How can I export the commands for my runs?