Sorry to bump this topic but, I did it.
1. Don't use WordPad.
2. You have to edit files outside of a zip.
Chrono, you can still use WordPad to change the coding in a script. I achieved this by:
1. Changing the uiName
2. Saving the WordPad document
SOMERWHERE ELSE (
not trying to overwrite the original)
3. Then inserting it into the Skins_RiflesT2 with the same name, thus overwriting the original script
WITHOUT encountering the "Read-Only" problem.
You are correct though on step your step 2, Chrono.