Events+ archive - how to limit post count?

I've copied the archive-incsub_event.php to my theme folder and successfully edited it to suit my design.

Is there a way I can limit the number of events shown to a specific number (12) instead of all events? It looks like 4 recurring events are shown at a time as well as any other one off events.

One idea was to use "do_shortcode();" and specify the number of items there. However this will mean I can't use my custom template - is that correct?

Thanks!