Punch vs. Punch on Play
When using the Punch option, starting playback and punching in are separate actions. If you want to punch in when starting playback, activate Punch on Play.
Use Punch on Play when you cannot punch in on the fly, for example in situations where you need to find the punch in position in stop mode. Once you have found the exact position, enable Punch on Play and start playback from there.
Punch is the option to use if you need to listen to the section before your punch in point and if this section already contains automation data that you do not want to overwrite. Roll through this section and then punch in the automation pass.
You can also use Punch in stop mode. To create automation data in this way, Punch must be combined with one of the Fill modes.