Using Ubuntu with unity and compiz it was possible for me to create a hot corner which triggered all (in-)active windows to be shown in an overview.
Is it possible to create something similar in xubuntu?

Using Ubuntu with unity and compiz it was possible for me to create a hot corner which triggered all (in-)active windows to be shown in an overview.
Is it possible to create something similar in xubuntu?

skippy-xd is the closest thing I can see.
I'd check the bug tracker because this doesn't come without issues.
You can install the PPA with:
sudo add-apt-repository ppa:landronimirc/skippy-xd-daily
sudo apt-get install skippy-xd
mkdir -p ~/.config/skippy-xd
wget -qO ~/.config/skippy-xd/skippy-xd.rc https://raw.github.com/richardgv/skippy-xd/master/skippy-xd.sample.rc
Then you just need to run skippy-xd to see the windows laid out. You can set a keyboard binding for that to make things easier.