How to save a surface document under a new name...
Activate the surface document you wish to operate on.
Select Save Surface Document As from the File Menu.
A dialog box appears. Press the Help button if you need instructions
on how to fill in the dialog box fields. Fill in the fields that are
not grayed or accept defaults and press Ok to continue. Or press Cancel
to abort.
Wintrack will save the active surface document to disk.
You use this command to save newly created surface documents or to
save to a new file the changes that you made to a surface document file
after opening it in Wintrack.