Quote Originally Posted by Pindar
So, would the copy of the original data folder be retained within the activision folder under say the name: "orginal data"? Switching between the two would be a process of remaining the one to play "data" and saving the other under another title? Is this correct?
If you just copy and paste the data folder, the original folder will be named "Copy of data". The rest of your supposition is correct - rename the folder you want to use "data" before starting the program.

Also, realize that whatever folder is named "data" at the time of RTR installation is where it will be installed.