Reply window placement

When replying to a longer message or thread, in both the vertical and horizontal frame layouts, the reply window comes up with just a few lines to work in.

Is there a way to make this window bigger, or to pop it out so I have more room?

Ah yes, I see the “Popout Composer” now. But it would be nice if I didn’t have to do this extra click to get more space.

What about making it a panel (at the bottom with height adjustment possibility)? That way the user could see any of the thread, not just the (tail of) last message.

Could you provide a Mock-Up / Drawing of how it could look like?

So is there any way to make the pop-out default- right now when I reply to a message I get a full window down below the original message and its hard to see.