My needs are simple-- having just discovered EPIM, I am impressed by its options and a soundly intuitive feel. More than likely, EPIM will become my next upgrade.
For now, however, all I want to do is hit the EPIM shortcut and have EPIM display my main database, and my preferred monthly calendar, ready for use. And without using Control + 1 or Control + M to start the calendar.
In other words, a custom startup setting. In looking through the Help section, general menu and this forum, I found little related to a startup configuration. This might be a useful feature for your next version.