Type umlauts on Dvorak keyboard in Linux

Here is an article explaining how to enable typing German umlauts (and others) in Linux. This is so convenient. Now I can type umlauts straight from Dvorak keyboard layout.
Basically, in the keyboard layout settings, set the Compose key. In Fedora 18 Gnome 3.6 this is in Keyboard -> Shortcuts -> Typing.
I use Right Alt for this. And then type key combinations to get umlauts:

• ä = compose, ", a
• ö = compose, ", o
• ü = compose, ", u
• ß = compose, s, s

and so on. There are many other special characters that can be typed this way.
Source Article.