QUESTION Change properties of multiple materials at once (in ksEditor)?

I want to change the values for ksAmbient, ksDiffuse and the shader for all objects in my project. It takes a lot of time to do this manually!

Is there a way to change the values of all objects at once?

 

open up the persistence file in notepad++ and use the replace function to change all the values at once. Then when you load the next time it will have the new values.

 

Thanks!