According to How to use Alt + GraveAccent on non-US keyboard?, the Unity shortcut to switch between windows of the same application is Alt + (whichever key is above Tab).
It doesn't work in my DELL-SK8115 keyboard with Brazilian ABNT2 layout. It's like the key is broken (i.e. pressing the combination has the same effect of pressing only Alt).
Also, if it helps, the same key (but in the Ctrl + ` combination) doesn't work in Sublime Text 2, either.
Best Answer
To change the so-called Alt+` and Alt+Shift+`, which switch between multiple windows of one application, to any custom key combination:
Click here to install the Compiz Settings Manager (CCSM) using the Software Center
sudo apt-get install compizconfig-settings-manager
from the terminalStart it from the Dash or by typing
ccsm
from the terminal.Type "Unity" in the filter box on the left, and click on the Ubuntu Unity Plugin:
Click on the Switcher Tab on top, and
Click on OK, and this shortcut will now show in place of the Disabled button
The Alt+` is now remapped. To do the same for the reverse Alt+Shift+` shortcut, repeat step 4 for the Key to flip through windows in the switcher entry, or you can just leave it disabled.
Finally, close CCSM and if you no longer need it, please consider uninstalling it.