I have a post for a Mori lathe, but I need to have it post out negative values in the X and need to swap the G2 and G3s. I have done some searching and cannot find exactly what I need to modify in my post in order for this to happen. I want to be able to open a MasterCam file and simply change the post and have it post correctly. I do not want to have to modify the drawing or entities. I found this in another post, but it doesn't really say what needs change...just where to look. Can anyone please help me out and let me know what I am looking for and what I need to change in order for this to work? Thanks.