encouraged by the user Sebastian, I am currently developing new automator actions:
- retrieve iCal objects from text
- move events to relative date (in relation to current date)
- extract property of iCal objects (gets any property of an iCal object in its own class)
It is a lot to learn and a lot to change updating the existing actions to current Xcode projects. So I think the next package will be incomplete or not completely up to date.