Hey. I am trying to change the name of the mode Galactic Civil War or Clone Wars to something else, so when you go into instant action it says something else on the menu where you load the maps. How would I do that? I changed the name using the localize tool in the section common>era, but ingame it is the same. Any ideas? thanks in advanced.

You can't do it without changing it for all of the maps. You could ask Zerted for one of the custom eras in the new 1.3 patch. There's lots of letters available.