How do I cycle with Alt-Tab over all workspaces ? (and some remarks about "hidden features")

[Thomas Kranz]

Ok, I've read a lot and does not find solutions for following wishes:

keybindings: 

Show Menu List (in xfce3 Alt-F2 does it)
Show Window List (xfce3 ctrl-ESC)

Hide/Show All Windows (shortcut to the showdesktop function)

Why is the mousebinding to button 4 on the desktop 
by default (this happens with my fresh xfce4) switching to previous desktop ?
Is this freedesktop specified or how can I change this to lower the active window ?
I guess it is for wheel mouse users but I don't work with it. I use a trackball with 4 buttons.
Is modifying with "xmodmap -e pointer" to switch the buttons and function a solution, I don't think so.

and ofcourse already posted: all other possible functions that can be done by keythemerc and xfwm4rc
btw - there're some fonts in gtk2 really ugly (blurry) - how to disable this (ugly truetype aliasing) ?
Can I disable this in gtk2 or is it a configuration error by me?

thanks for your patience,
I'm asking a lot about this but in fact I enjoy the xfce4 (just little things I wish to have changed).
So I'm impressed of the work done with xfce4. I'm not the one who always grouses, sometimes ;-)

Thomas