Home » TS4 Tutorial » TS4 Tutorial:  Maintaining Family Relations – New Save

TS4 Tutorial:  Maintaining Family Relations – New Save

If you are like me and are a multi-generational rotational player, then you live in fear of the day that your save gets corrupted.  I’ve figured out how to save your families to the tray and move them to a new save.

I have to warn you that it is involved and perhaps there is an easier way to do this but it’s the way I do it and how it works for me.

I’ll be using my Chaisson Legacy save as an example because they are the largest and most extended.

Tools/Mods needed:

MC Command Center (Download all of it for now and you can remove it once you’re done)

Step 1:

In CAS, put the original family members together as much as possible. 

In my case that means moving Mercy and Luna Marie back in with their mother, grandmother, sister, brother and their step father.  Their husbands (and the children) will be moved back in with their families.  If you don’t have enough room, then move out any sims that you’re OK with possibly losing a relationship (like step families, distant relatives or Sims that aren’t all that important to your legacy)

Current household management families:


Households after moving sims around according to step 1, the marriages and children are easier to fix than grandparents, uncles/aunts, cousins…..


Step 2:

Save these new households to your tray so you can alter their relationships in CAS outside the save.  You are not allowed to do this in the save without a bunch of hassle.

Open your library to make sure the households you want are there.

Exit the game without saving so the changes you made don’t take.

Check in CAS (outside the save) to make sure the relationships are as you want them.  This is my Chaisson family without their spouses and children.


Step 3:

Start your new glitch free save and place your households.  Once placed, move the Sims out of their family households and into the ones with their spouse and children.  

Next you will be repairing those relationships using a combination of MCCC and the Sim ID/cheat.  As you can see, Mercy is not related to her own children and barely knows them.  Have to fix that.


Step 4:

Left click on your sim (Mercy in my case) and select “modify in CAS”.  As you can see, you can make him her husband but you can’t make them her children!  That’s where MCCC comes in…..


Click the check mark to make him her husband and then go back to live mode by clicking the check mark and play.  You are now going to fix her relationships with her family.

Have Mercy selected and then click on her (again MCCC is needed for this step) and do each of the following (click each box in order):

MC Command Center / Relationship / Add Relationship / Primary Sim

Next select one of her children and do the same but this time make the child secondary sim:

MC Command Center / Relationship / Add Relationship / Secondary Sim

If you did it right, it will look like the below screen:


Now select “add relationship” but pay attention to who is the primary Sim and who is the secondary sim.  Select son because this is what is happening to her.  You should see little green pluses show up over their heads.  You can also double check the relationships panel and see that she just gained a son!


Do this for all her children till she’s gained them all back.  Do this by having her selected and then clicking on each child and making each one secondary (like I did with Rhys).  Add each one as her son/daughter.  Hover over their faces in the relationship panel to make sure it shows.

Now to repair their relationship levels.  You will again be using MCC and the relationships.

MC Command Center / Relationships / Set Active Relationship Levels / Set Active Friendly / Choose the level you want


So now she’s got her relationship back with her family but the kids don’t have any grandparents!  You will need to get the SIM ID and use the relationship add cheat to repair this.

Step 5:

Get the SIM ID by opening up the cheat menu (CTRL+Shift+C), type in testing cheats true into the bar, then copy/paste the below into the bar to get each SIM ID

sims.get_sim_id_by_name (first name) (last name)

Without the ( ) so in the case of the children’s grandmother, it would be like the below:

sims.get_sim_id_by_name Adelaide Crain

Write down the entire number and get the ID for every grandchild.


Step 6:

Now you are going to use the cheat to add in their relationship.  Type in the below into that cheat bar.

relationship.add_bit {yoursimID} {targetsimID} {relationship}

The options for relationship that can’t be repaired in CAS are as follows (you can also do this in MCCC using the add relationship but I’ve found that it doesn’t always “take” for grandparents/grandchildren):


Adding Adelaide as Remy’s grandmother would look as follows (have the sim that is ‘your sim’ and the one you are adding the relationship selected when doing this.  Keep in mind that Adelaide is HIS grandparent):


Do this for each grandchild and check the family tree after each one to see if it took.  Remember, have the sim you want selected as you add them.  Then switch to the next one.  I’m going to go over to Gabe’s household to add him as Adelaide’s grandchild.


So, when I went over to check on Keahi and Luna I ran into a problem where it shows Keahi as having another unknown wife.  It wouldn’t let me make Luna his wife.  Again, use MCCC to fix this.

Testing cheats true

MC Command Center / Check Sim Info / Marriage / Marry Luna Johnson Only


Step 7:

Now that I’ve got the family trees looking the way I want.  I will be moving Adelaide into each of her grandchildren’s homes and following STEP 4 to make them all friends.

When I moved Adelaide in with Mercy/Remington and added the friendship relationship, I sat that while she shows in the relationship panel as the children’s grandmother that they don’t show in hers as her grandchildren.

I will follow STEP 6 to add them to her relationship.  This time the relationship will be family_grandchild since they are HER grandchildren and her Sim ID will be the first one.  

Note:  Sometimes it will only show the relationship in the genealogy but not the relationship panel.  For example, when I added Gabriel it showed both ways in the relationship panel.  Yet, when I added Remy, Rhys, Riley it only showed her as their grandmother but it never showed them as her grandchildren.  It’s a glitch in the panel since it shows in the tree.  

Do this for all the families and you’ll have them repaired.   It won’t show some cousins, aunts/uncles UNLESS they were saved originally together and repaired in CAS outside the save.  It will show the grandparents, though.  If you remember to add them in order (grandparents on down) then you have a better chance of having the aunts/uncles showing.

ASK if you have any questions!

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