That was not my intention 
You can do great clipboard stuff with KM, especially very sophisticated things you can’t do with LB. I just prefer LB’s clipboard functions for everyday use, because its usability in that respect seems superior to me.
how to use it for copy append?
I guess you mean ClipMerge:
I could not find documentation
LaunchBar Help. It’s still not updated for version 6, but many things are unchanged. A great source of information, takes a couple of hours to read and understand.
I read that one could use LB to quickly create a google calendar entry […] Do you use LB in that way?
No, sorry. I don’t use Google stuff. (At least not voluntarily…)
Maybe @JMichaelTX can help you here.
If you could put me in the right direction, I would greatly appreciate it.
I don’t know if you have seen, but there are a few LB-related topics on this forum:
- LaunchBar Actions by @raguay (customct.com)
- Using and Comparing Automation Tools: Keyboard Maestro, Alfred, LaunchBar, etc - #14 by JMichaelTX
as well as some individual LB-posts in other topics, if you use the forum search.
LB also has a forum, a bit crappy though. (Al least when comparing to this forum.)