Mixing : Automation : Writing Automation : Storing an Initial Control Position

Storing an Initial Control Position
When you create a new audio, Auxiliary Input, VCA Master, MIDI, or Instrument track, it is automatically placed in Read mode. Even though the track is in Read mode, you can set the initial position of any automatable control, and it is saved with your session.
In this initial state, only a single automation breakpoint appears at the beginning of each automation playlist. If you move the control without writing automation, this breakpoint will move to the new value.
You can permanently store the initial position of an automatable control by doing any of the following:
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Place the track in Write mode and press Play to write a few seconds of automation data to the track
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Manually place a breakpoint on the automation playlist somewhere after the initial breakpoint. (See Graphical Editing of Automation Data for more information.)