[Drumstix42]

It sounds like a "old habits die hard" thing to me. A lot of the time your target window, and who you have targeted doesn't really matter for casting through the raid window if you have buttons setup.

On the other hand, it can also be hard to learn new habits. Not trying to sway you away from that.
I agree that the above would be possible, at least most of it easily enough. But, it's definitely a different request compared to to the "norm".

The overlying text on that "squared" modification seems really big an un-necessary though, especially re-using the word "Unit" in every box.
It gives me a few ideas that could be kind of cool for a raid window mod though...