HOW TO EDIT SOMEONE ELSE’S IGLOO:
STEP 1:Go to your igloo.
STEP 2:Now, go into edit mode (click the measuring tape)
STEP 3: Finally, go to somone else’s igloo and now you are able to rearrange someone else’s igloo.
Here is the link to the video walkthrough made by Pinkydabeast: (Click here)