Is there a way to prevent Dreamweaver from undoing changes with linked files

When I am working with Dreamweaver and I may be including other files in my code. When I do a Ctrl-Z to undo something if I made changes in the linked files as well it will automatically undo changes in those other files as well in the order I did them. Is there a way to make Dreamweaver only undo changes in the file that I have currently open and not and linked files?

Hope that makes sense