I think I understand what you are asking for. If I am wrong, please try to explain it a bit more.
The name shown may be different than the name of the vi file. To do this, your source VI and popup on its icon. From the short menu that comes up, select VI properties. In the top ring, select Window Appearance. The page that comes up lets you set various things that can affect the appearance of the VI. What you want to change is the window title. Uncheck the Same as VI name checkbox and change the string to whatever you want it to be.
I hope that this helps,
Bob