Making your own keyboard app-launcher in Ubuntu

One day I got this message in gmail ubuntu-id mailing list that someone requested a how-to add a keyboard app-launcher in Ubuntu. i tried to give him a closer solution, by pressing Alt+F2 and typing application name; or by adding deskbar to main panel, pressing Alt+F3, and then typing three fore-letter of the application you want to run.
is there simply just one shortcut for all these?

Yes, there is...

1. Go to terminal, run :

gconf-editor

2. In Configuration Editor window, Go to apps/metacity/keybinding_command.
click command_1, and click it once at the it's "value" column, type the application you want.
for example openoffice writer, which the command is ooffice -writer.
then press Enter.

you can also use other command_(1 to 12) that still has no value.

3. Go to apps/metacity/global_keybinding.
Find run_command_1, dan click it once at it's "value" column.
Add your own shortcut, which is not have used before. for example Ctrl+Shift+F5. Type it like this <Ctrl><Shift>F5

Close the Configuration Editor window.

4. Now try pressing Ctrl+Shift+F5.