TOPIC: Prefill Registration Notification Email recipient

Is it possible to set up the back-end to insert a default Registration Notification Email recipient which may be changed as required, but would save an event submitter the hassle of filling that field in with the same address again and again (which opens up the chance of typos in the field and confusion when the system pops up the "must fill in..." error the first time around).

There is not presently any setting for this, but you could try loading it as the default in your database.
table: jos_dtregister_group_event
field: email

Default is currently "NULL". Change it to your desired email address.