Protocol script

Hi all,

       I have a question regarding writing a script to launch a protocol and modifying a protocol parameters from Script then save the output of the file in a desired location.

For ex:

LaunchProtocol('Solvation', \$parameterMap,);

I want to save the solvated struture. I also have a question how to modify the two protocol parameters from script:

for ex:

Add counterions to desired concentration 

How to call one script file from another? Sorry for posing several questions.

Any advice will be of great help

Thanks