Instructions
Open a new instance of Notepad on your computer.
Type in the code you want to use. For example, if you want to force "Medieval II: Total War" to use another configuration file instead of the default one, type "medieval2.exe @x.cfg," replacing "x" with the name of your configuration.
Type in the following code beneath any code you type: "medieval2.exe --io.file_first." Whenever you make your own batch file, this code is required to inform "Kingdoms" that you are actually using a modification.
Press "Ctrl" and "S" and wait for a dialog box to appear. Type "x.bat" with the quotes, replacing "x" with your desired filename.