Mixing : Automation : Cutting, Copying, and Pasting Automation : Editing and Track Views

Editing and Track Views
Audio, MIDI, and Instrument tracks each have a Track View that acts as the Master View for purposes of editing. When the Master View is displayed, any edits performed on the track apply to all data in the track.
The Master Views are:
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For example, when an audio track is set to Waveform or Blocks, cutting, copying and pasting affects the audio data and all types of automation data on that track. If the track is set to show Pan automation, only the Pan data is affected.
When a selection includes multiple tracks, if any of those tracks is in its Master View, all data on all selected tracks is affected.
To edit all automation types on an Auxiliary Input or Master Fader track, do one of the following:
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Make an Edit selection that includes at least one audio or MIDI track that is displayed in its main format.
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For additional flexibility, you can use playlists or the Duplicate Track command to work nondestructively on a copy of the edit data.