If two window objects are unique, then look for unique child objects and re-define your frame like below. It will be useful mainly for web applications. Often the browser title will be same for many screens.

Assume that X & Y are two different windows and having same tag. Both windows are differentiated by their unique child objects.

Window X
tag "TestWindow/[TextField]Name/.."

Window Y
tag "TestWindow/[Pushbutton]Search/.."