Hypothetical: I create a scenario and it is based off current version of a game version 1.5. Game updates to 1.6 Game updates to 2.0 Do I have a copy of the 1.5 vanilla game files saved in another folder, and then copy the 1.6 vanilla files into another and compare them. Then manually make any changes in my scenario ecf, yaml, icons and such? If I did nothing and kept playing scenario and it was all fine, then decided to update it to 2.0 as a major update but did not have a copy set aside of version1.5 of game to compare, how would I do so? Since I do not have two vanilla versions to compare I would be comparing a 2.0 vanilla to a created 1.5 scenario which makes a comparison of not much value.
Sorry for the late response, but I have just discovered your thread. Ravien_ff has made a nice template scenario to use as a base for a new work, and it's also easy to update scenarios with it, a lot of instructions are included in the folders. It's here: https://steamcommunity.com/sharedfiles/filedetails/?id=2122687972