FL Studio

Music Production
Transport & File
SPACE Play / Stop Win mac Linux
CTRL+Z Undo Win mac Linux
CTRL+⇧ Shift+Z Redo Win mac Linux
CTRL+S Save project Win mac Linux
CTRL+N New project Win mac Linux
CTRL+O Open project Win mac Linux
Windows & Panels
F5 Show / hide Playlist Win mac Linux
F6 Show / hide Channel Rack Win mac Linux
F7 Show / hide Piano Roll Win mac Linux
F8 Open Plugin Picker Win mac Linux
F9 Show / hide Mixer Win mac Linux
F12 Close all plugin windows Win mac Linux
Piano Roll
CTRL+A Select all notes Win mac Linux
DEL Delete selected notes Win mac Linux
CTRL+D Deselect all Win mac Linux
CTRL+C Copy selected notes Win mac Linux
CTRL+V Paste notes Win mac Linux
CTRL+⇧ Shift+Up / Down Arrow Transpose notes by octave Win mac Linux
⇧ Shift+Up / Down Arrow Transpose notes by semitone Win mac Linux