Go Advanced should be Bigger in the X axis
 

Go Advanced should have the Same X Size as the Quick Reply (or just bigger than it is now.
There is too much empty space around* why do we need to "restrict" the X axes of the writing box?
Why when we press the Go Advanced the X Axes of the available box to write anything you like inside it and form the text gets too Small?
Why not have the fluidity of the Quick Reply in the Go Advanced too?

Every time I go to the Go Advanced* I feel some kind of "bottlenecked"...!!! :-)