Is there an easy way to create a new appointment with predefined fields, like
time and so on, instead of manually create a todo in the gmail org file?
As proposed in the comments here is a sample appointment:
* Title :PROPERTIES: :LINK: [[https://www.google.com/calendar/event?eid=123456789][Go to gcal web page]] :ID: ukf76ifl27j3shea562f5vrhe0 :END: <2016-08-01 Mo 09:10-10:10>
I hope this helps.