Copy, paste and drag

⌘C, ⌘X, ⌘V and ⌘D (duplicate) work on whatever you clicked last:

Where	What they copy
Arrangement lanes	Clips, or an automation range in automation mode
Track headers	Whole tracks — a group with its tracks; pasted tracks land after the selected one
Session grid	A clip or a scene
Clip editor	Notes
Device chain	Devices (right-click a device header ▸ Copy)

Every paste is one undo step.

Between the Arrangement and Session

The clipboard carries clips both ways: copy clips on the timeline and paste them on a Session slot, or copy a slot and paste it on the timeline.

⌘ ⇧ C sends the selection straight across — also Copy to Session / Copy to Arrangement in the right-click menus and the Edit menu:

Arrangement → Session: the clips land in the first scene row where they all fit — each track’s clips down its column in time order — adding scenes if needed. Copy to Scene picks the scene yourself.
Session → Arrangement: a clip, a group slot or a whole scene lands on the timeline at the playhead, without covering clips that are already there.

Notes, clip envelopes, names, warp, pitch and gain come along.

Audio clips into instruments

Drag an audio clip from the Arrangement onto the row of a track with a Sampler, Nota Grain, Drum Rack or Instrument Rack and its audio loads there — a Drum Rack takes it on the next free pad. Rest over an instrument track while dragging and its devices open, so a particular pad is one more move away.

Pull a clip out of the Arrangement and it becomes a sample you can drop anywhere a sample goes: a Drum Rack pad, a Grain, a Nota Rhythm voice, a Session slot. The clip itself stays where it was; the sample is the part of the clip you hear.

Dragging from the browser

Anything in the browser can be dragged into the project: instruments and effects onto tracks or device chains, samples and loops onto tracks or slots, MIDI files onto instrument tracks, presets onto devices. See The browser.