Conviently it's mapped to Control+Shift+R
Unfortunately, in Aptana, Eclipse and the Rails workspace, two other commands are bound to this same shortcut. Eclipse, being smart, will create a pop up menu with each of these commands and you can select the one you want with the mouse (typing 0,1,2 will do the same).
Anyone trying to keybind, or replace the shortcut will find that none of the Eclipse GUI menus will allow you to change it.
Edit: One extra step, you need to download the bundle with eclipse in order to view in the Documents dir.
Click on Commands -> Select Rails or Ruby from the menu -> Edit this bundle.
Take note of the other menu items.
Run Rake Task 1
Run Focused Unit Test 2
Open Resource 3
Aptana saves all the bundle scripts in this directory
You will find all the aptana scripts *.rb
and change '+R' in
cmd.key_binding = 'CONTROL+M2+R'or
cmd.key_binding = 'M1+M2+R'
to '+Y' or another key