It would be very helpful if the name of a selected sheet could be displayed as a bookmark. Sometimes you have several sheets saved in a single file, and there is no way to know which sheet you have selected unless, of course, you name it somewhere on the sheet itself.
When a file has more than 1 sheet, is there any way to add its name to the bookmark (name tag) on the top left corner of the window? Perharps something like: File Name.mcd/Sheet Name, or add a check to the pull-out from the bottom left corner?