Hi, In our program we use compiler define variable GN_Test (PFA). I have to write a script file to build the project with GN_Test. The script must also be able to change GN_Test to PR_Test and other required parameters. The script must edit GN_Test to other variable before execution. Can someone please help me with how should I proceed. Thanks //# encoding:utf-8 from future import print_function import scriptengine print("--- Starting Script. ---") print("--- Open Project. ---") project = projects.open(r"C:\Users\E0517074\Test_Proj\CodeSys\Test_PRJ.project",...