Hey, could also do this:
You can customize one of them-Mya.
You will find a limelight customization template here:
Instructions:
First click on this:
(this will allow you customize one person in limelight and that can be Mya)
Then click on this:
So, after Mya is customized, at the end you would write:
@MIA becomes MYA
This would make Mya and Mia look alike and if you want to change some things you could do so following the instructions in the Twins & Family members CC document provided above by the wonderful amazing @ Dara.Amarie ^^
Anyway, good luck with everything!
And PM me if you need help doing this ; )