There is a functionality implemented in Creator under "File" called "Create Workspace Bundle". This can do the job of archiving a version.
Hope this fulfils your needs.
You can also copy and paste a file. For example, select and copy main.c. Then select a folder and paste. Creator will append "01" to the file name, and you can change it to anything you want.
You can also use Save As for an entire Project, but that might be overkill for what you want.
Oh, that might work--make a "Archive" folder or somesuch, and do copy/paste, with appropriate version control (of my picking, if "01" "02" etc does not appeal to me). Ok, that might take care of it.