Meta-click: alt+shift+middle click
Shortcuts
cmd + b : browse
cmd + d : do it
cmd + D : debug it
cmd+n : senders
cmd+m : implementors
alt+shift+u : format the code
alt+shift+l ou r : indent left or right
cmd+h cmd+a : generate accessors
cmd+h cmd+i : generate initialize method
cmd+l : cancel current changes