@DSkoog Thank you for your clarification.
In the help the points you explain don't seem to be high lighted. I understant the prediciment on the decisions you faced. Really the help pages need to clarify these points.
So thaking the situation of "Save As" on a Workbook file- there are many reasons. My one was, need to try something different but don't want to loose what I have. So I have a series of questions.
1) Are the contained files copied to the new document?
2) Where are these contained documents actually being stored? Somewhere in help it mentions a "Shared folder" for certain file types. What shared folder?
3) What does the pretty coloured "0" in the tab bar represent? I notice it is a diffferent colour for each subsequent workbook file opened.
4) Is there any way of revision/version managing Maple files? I know this is not specifically a workbook file question.
Overall the Workbook is a great asset.