When I change the status of an appointment, no email notifications were sent. It took me an hour of testing and checking the plugin source for bugs and checking my mail server, before I found out that there is a checkbox "Send email notification" that is unchecked by default ! Now, why didn't I see this checkbox sooner? Because I have a very wide monitor and the checkbox is on the most left position and the Apply button is on the most right position of the screen...... And most importantly I didn't expect that there even was a choice to not send notifications. Why wouldn't you notify a customer that his/her appointment has changed? And why is this checkbox unchecked by default? Please change this, it drove my wild the last hour.