Is it possible to put the premade scenario families into a save we already have to play?

If you mean after you finish the scenario, you just save them to your Library and then put them in the save you want them to be a part of.

If you mean before starting the scenario, make sure the save you want to play them in is the most recent save. You can do that by loading the save and just saving (or Save as if you don’t want to over write your current save). Then you just move them in as normal.

I hope that makes sense. If not I'll gladly clarify anything you need me to. :)

When starting a scenario there is an option to do it in a new save or an existing one. Choose existing one

Thank you @SweetieWright_84 i think I understand. I can do a save and save as and if I mess up I will have two. So I will probably try that if it doesn’t allow me to just choose an existing save as Selena Kyle’s suggested. I will test it after making two of the same save. Thank you both.

"SheriSim57;c-18287738" wrote:
Thank you @SweetieWright_84 i think I understand. I can do a save and save as and if I mess up I will have two. So I will probably try that if it doesn’t allow me to just choose an existing save as Selena Kyle’s suggested. I will test it after making two of the same save. Thank you both.

You're very welcome!

SelinaKyles is right, I just forgot that was an option. I've only done 2 scenarios, both with premade Sims, so I forgot how they work.