Be able to enlarge full screen chat log with 1 button, then be able to scroll up/down

Hi,

I come from FFXI and there is something I miss from FFXI in FFXIV,
It should be cool if we can enlarge the chat log to full screen with 1 action. (the same way its possible in FFXI.)

(Scroll UP and DOWN is normal speed using DOWN and UP directions, and super fast speed using RIGHT and LEFT Directions, well like scrolling in inventory menu).

So: with xbox controler its like "Y" then "A" to full screen chat log, then D pad to scroll UP or DOWN and "B" to return the window size at normal size.

And on PC its like: "+" then "Enter" to full screen chat log, then Direction Pad for scroll UP or DOWN and "ESCAPE" to return the window size to normal size.

I think it should be nice to include this option in FFXIV User Interface :)