First question: is it posible to ignore the timezone time change when importing ICS files? Because now if I import a appointment at 15:00 it shows 16:00 on the calendar and 17:00 with sumertime.

The second questions: is it posible to delete appointments using ICS files?

If it is then some followup questions.

2A: What would need to be changed to delete an appointment?
2B: Can you delete multiple appointments in the ICS file?
2C: Is it posible to do it in the same ICS file which also creates appointments?

Thanks again for your time.