I've installed PocketInformant and use it as my calendar app on my phone with Jelly Bean. However, when I get appointment/calendar event reminders, it's the stock calendar that notifies me. This is a bit annoying, since I sometimes wish to edit the appointment from within the reminder. Clicking edit brings up the stock calendar and not PocketInformant.

Is there a way to set PocketInformant as the default Calendar app? Or at least make it the default app for showing calendar reminders?