How to keep orignal name of column if rename field is empty

sgnarkhede2016

I want to rename only few attribute names  from all attributes
e.g.
I have two column "Name" and "Rename"
Name       Rename
Sachin      Sachin N
Abhay        ?
Jay            Jayesh
Ankita        ?

I want to keep same name if rename is "?"

How to achive this in rapidminer

kayman

Use the 'Generate attribute' operator for this and use a script like this :

if(missing([Rename]),[Name],[Rename])

So if there is no Rename (your ?) keep the Name, otherwise use Rename