I have two Google calendars (both for the same Google account) called 'appointments' and 'notes'. I synchronise these with Lightning via caldav. In the appointments calendar I log events, meetings etc. and in the notes calendar I record things I need to remember, e.g. that my pension income is due on a certain day. Such notes are entered as untimed ('all day') events. Sometimes I copy and paste appointments -- e.g. I visit the dentist one day and arrange a further visit, so I copy the original entry to create the new appointment. Recently I have noticed that when I do this the new appointment is entered in the wrong calendar: the start and finish times are preserved but the calendar is changed from 'appointments' to 'notes' and I have to manually correct it.

Is there an option to specify the default calendar for new entries? Or is this a bug? I am using Lightning 4.0.5.2 with Thunderbird 38.5.1 and my operating system is Xubuntu Linux 14.04.2. Thanks in advance for your assistance!