Ok, this one is easy for most of you (sorry if it is a repeat). I only want to edit the time scale and building prices and times in the kingdoms campaigns but the files are read only. I cannot remember from my RTW days how to make it possible to edit the text files. The only game seting file I found has nothing related to that. So, do I need a mod tool or just need to change a line in a file??

Thanks for your emergent help.