One thing that frustrates me when using the app is that it forces me to bother with minutes when assigning time to events and drag & dropping tasks. I don't really care about minutes, 5 minutes, or even 15 minutes. The smallest time granularity I need is half an hour. I would therefore like to tell this to the app and have this reflected in simplified choice of time (i.e. choosing a time from single list of possible times) and drag & dropping of events (events would stick only to full and half hour markers). This feature is not uncommon in some other calendar software on the Windows platform, so I believe that you know and understand what I am asking for.