Brief Baby Congrats Message What Is Called A "DESIGNER BABY"? Recently I've Read A Very Brief Article On "CUMULOUS AIDED TRANSFER" And ...?

What is called a "DESIGNER BABY"? Recently I've read a very brief article on "CUMULOUS AIDED TRANSFER" and ...? - brief baby congrats message

Pre-implantation Genetic Diagnosis (TMP) and the parents can see their child in the womb, etc. Can someone explain?