Hi,
The very same way you can record when the editor is not open. Just enable the Record for the track.
Maybe some screenshots of your setup would help.
You cannot add an Audio Insert effect (like Reverb) to a MIDI track. You can add it to an Instrument track directly (i.e. the Audio Return of the Instrument, which is glued to one track within the Instrument Track) in the Audio Inserts tab of the Instrument Track.