how to get contents of 2 different versions of a file from rtc scm

One answer

This forum post describe how to do it via the SCM CLI
https://jazz.net/forum/questions/175377/using-command-line-scm-how-do-i-revert-to-a-previous-file-version-in-the-sandbox
https://jazz.net/forum/questions/175377/using-command-line-scm-how-do-i-revert-to-a-previous-file-version-in-the-sandbox