I am using Rapidweaver for some years now, mostly for quick static website projects. The last months I had to create a couple of responsive websites and to to be honest: the missing window titles in the window menu drives me nuts… 
But what window is now what? (hint, there’s a main window, two previews and the resources window)
Please, add the the type of the window (Main, Preview, Resource…) to the window titles. Just only the project name doesn’t help.
Cheers,
Heiko