⌘D Multi-select
⌘K,⌘D Skip the current match and select the next one
⌘U Soft Undo
⌘ + Ctrl + G Select all occurences under cursor
⌘P Jump to files
⌘L Select Line
⌘ + Shift + L Convert Selection to Multi-select
⌘ + Shift + J Select all lines at current indentation