Is there a function like the \"open declaration\" in eclipse, that we can use in the new Android Studio?
Just like F3 button.
In Preferences, I added the shortcut to Navigate->Declaration in Keymap:

The cmd+button1 click was added with right click, "add mouse shortcut".
It is interesting, that to make it 'fully' eclipse like, you may want to make the Javadocs appear on hover. For that you must set "Show quick doc on mouse move" up in the Editor->Other section.
