You need to open the PostForm.m file and find the post file name that you intend to edit. Depending on the number of posts you have added to SurfCAM there could be alot. I found that the newest posts are loaded at the end of the PostForm.m file. Look for the titles "name [the post name that appears in SurfCAM]". These are basically the same as the files in the POSTLIB, MPOST folder. You have to change the PostFrom.m file as SurfCAM does not even look at the .M3 files.
I made a backup of the PostForm.m file and then deleted all the posts that we do not regularly use from the PostForm.m file. This makes it alot easier to edit the posts when you need to.
Jeff Lange
Lightning Tool & Manufacturing, Inc.