Thanks for your report, but this is auplicate of #48. Please search through the issues before creating a new one.
Cannot add calendar to sync
Today, I added a new calendar to my OwnCloud server and noticed that there’s no [obvious] way to add a new calendar to sync in the same account. I had to delete the account and configure it again, which does not seem very user-friendly.
Yes, we know. “Account settings” is a priority goal on our agenda.
Thanks for your report. Please follow up in #219.
PS: High-quality pull requests are always welcome.