You enable (arm) a track for recording using the Record Enable button in the track’s header. Similar to corresponding buttons on a hardware multitrack recorder, Record Enable buttons have multiple states, including Off (gray), Armed (blinking red), and Recording (solid red). For the focused track, the letter “R” in its Record Enable button turns red to indicate that it will be enabled together with the Record function.
You can record enable multiple audio tracks, as long as each track has a unique input (chosen in the Input slot). Multiple tracks that use the same input cannot be simultaneously enabled for recording. If several tracks are assigned to the same channel strip (for example, “Audio 1”), the new audio region is recorded to the focused track assigned to the channel strip. If none of the record-enabled tracks is focused, the region is recorded to the first (uppermost) of the tracks. For more information, see Record to multiple audio tracks.
If you record enable multiple software instrument tracks, a new MIDI region is recorded on the focused MIDI track, and an alias of the recorded MIDI region is created on the other record-enabled MIDI tracks. For more information, see Record to multiple software instrument tracks.
Note: When Show Advanced Tools is selected in the Advanced preferences pane, Record Enable buttons appear with the letter “R.” When Show Advanced Tools is not selected, Record Enable buttons appear with a circle that lights red when the track is record-enabled.
Click the Record Enable button in the track header.
Click the Record Enable button again to disable the track for recording.
You can also select one or more tracks with different inputs in the Tracks area, and use the Record Enable Track key command (default: Control-R) to enable them for recording.