New blizz chat s*cks big time ... this is a first try to soften the impact.
There is no configuring ... but you can switch true/false in lua:
* UnClamp - Allow moving out of screen
* HideBorder - Hides the editbox border when not active (has focus)
* HideFriendButton - Hides the MicroFriendsButton
* Unsticky - Dont remember whispertarget when pressing enter