Hello [name]! Thanks for joining the GMC. Before making any posts in the Tech Support forum, can we suggest you read the forum rules? These are simple guidelines that we ask you to follow so that you can get the best help possible for your issue.
It's possible using the internal source control system or using another source control system like Git. You can create free repositories on Gitlab or Bitbucket and use SourceTree if you don't want to use the command line verion of git. I'm not sure if the internal source control is working yet, but I think so.