previously on this list Jean-Christophe Dubacq contributed:
I am talking about focus follows mouse but raise only on clicking say
the border or bar, you can still enter text into any layered windows
that have focus. So you can quickly switch for entry to or from web
pages on one screen or read a web page in the background. Reference 4
open windows at once, use the scroll upon focus etc.. Basically the
closest thing to a panelling window manager like scrotwm (which I could
learn) without needing to learn the commands (works for my users too
and I should test what I provide) and allowing overlapping for
redundant web edges, saves time re-sizing etc..
And this is a so tiny detail that it does not matter for what should be
the default desktop environment. No matter how configurable is your
thing, what matters is how usable is it out of the box.
??? I agree with someone else who responded with "killer feature" as for
me it is also a primary requirement from a window manager precisely
because of the usability increase.
For the rest,
apt-get or any other package management interface is your friend.
Exactly, This all came from xfce multiple desktop support in debian 8
apparently not being the best, I was merely saying that it matters less
to xfce because of this feature but also with *randr from apt-get it is
not a problem and later versions than xfce-display-settings-4.10 I
am pretty sure do have good support without *randr bootstrapping.