q9qwew This option does not exist by default. However, you can make it happen if you're willing to do some work yourself. Save data is stored here:
C:\Users\your username\Saved Games\Electronic Arts\The Sims 25
If you move or rename the Sims 25 folder, the game won't be able to read it, and your progress will be reset to zero. So you could start an entirely new save, unconnected to your previous one. And when you wanted to go back to your main save, you could move or rename the new Sims 25 folder, and restore the old one, or change its name back to "The Sims 25" (exactly that, nothing else in the name).
The point is, you could have one folder per save, and rotate the folders in and out depending on which save you wanted to play.