When I'm finished making whatever it is I'm making, I save, close, all the normal stuff. However, later when I want to edit it, I'll open the mod, do the edits, and click save. The problem is it wants to save as another mod, and all the "original" content from the file-in-use wouldn't be there. What's the proper way to re-save over the same file and all stuffs is there without having to leave the CS open?

You have to make sure you set the mod as the Active file when you open it. Without an Active file, the CS saves changes to a new file.

Alright, thanks