A "Save As" for the entire project is probably a daunting task, but saving only the currently open module in the editor with a different name shouldn't be.
I believe these are basic features that virtually all software programs have.
I apologize if my tone may seem dismissive, but getting this done by having to go through multiple steps is unnerving.
It might be helpful; it's a good idea to create a custom project template that also contains that comment line.
There could be a problem when project modules are linked to folders other than the project folders.
In any case, I really "need" to be able to save individual modules.