Email reminder of approaching event the user (maybe) is attending

Hi everyone

Setup current:

WordPress 3.3.2
BuddyPress 1.5.5
Event+ 1.2

I would like users to be reminded by BuddyPress notification or email of an approaching event for which they have signed up or have indicated an interest in by RSVP'ing 'Maybe'.

I expected this to be a setting, but I can't seem to find it.

Searching this forum have not yielded an answer.

Any help or pointers much appreciated.