Logic Pro/Express 7: Automation not written in MIDI mode

When you try to create "region-based" automation in Logic Pro 7 or Logic Express 7, the process may not seem to work. Here's the sequence of events you may experience:

1. In Logic, you set the Automation Mode for an audio channel to "MIDI" to write automation data to a region instead of to a track.
2. You start playback (by clicking the Play button) and move controls in a plug-in that's assigned to the audio channel.
3. You stop playback and notice that Logic didn't record any of the automation.

This happens because when you use MIDI as the Automation Mode, Logic needs a way to write the automation data to a new region. Therefore, to make sure that Logic records your changes, click Record to begin writing the automation data instead of Play.

Other Automation modes allow you to write data by clicking only the Play button.