Scale mode window on same workspace?
Solution 1:
The picking from all workspaces when left clicking on launcher icon was intentionally removed. Actually the process to do so began early in Natty dev, just took a while but was inevitable
Bug report that started it - https://bugs.launchpad.net/ubuntu/+source/unity/+bug/689733
Additionally one cannot directly set a binding for it in scale, initiate_all from all WS's was also intentionally removed in the scale plugin source starting in compiz-0.9.4
It is however possible to patch scale.cpp, rebuild the plugin & get window picker for window group
from all Ws's thru a command, dbus & keyboard combo, do so here & it works just fine.
Method to patch & enable will be maintained thru 12.04 release in this thread concerning a cuberotate hack, if interested read post 1 & 15, ask there if need be - http://ubuntuforums.org/showthread.php?t=1938942
Otherwise you can use the Alt-Tab switcher & disabling the bias alt-tab to prefer windows on the current viewport
option in the unity plugin settings to get from all WS's
Solution 2:
I was the guy who wrote the post saying compile yourself is NOT the answer.
I still think the same: compile it yourself is not the Ubuntu's way (may be true for CentOS, Slackware or other linux distros).
Fortunately, there is a solution: someone skilled did for us (not an Ubuntu developer, sadly). Here is a PPA where you can download the uncrippled version of Compiz that can show windows from all workspaces:
https://launchpad.net/~bsantos/+archive/ppa
I'm using it and so far it works fine.
Thanks very much Bruno Santos!
I found this solution buried deep in this thread:
https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/933776