While Recording you can enter a Stop On Timecode value, which will be used to stop a Recording on that given Timecode automatically. Start a Recording and open the Inspector. Within the Timecode section, enable the Stop on Timecode feature and enter a valid timecode value.
The Record button will display that the Stop on Timecode feature is activated. Note that you can not stop the recording manually now. If you want to do that, disable the Stop on Timecode feature again.