Dependency between jobs in Satellite 6.2

Hello,
I want to realize an automatic update process for all my systems. Part of this process is to notify a specific system at start/end of the updates:
1. Send the start-event
2. Install all available updates
3. reboot the machine
4. Send the end-event

I do this in Satellite 5 using actionchains which works like a charm. Because there are no actionchains in Satellite 6, I'm searching for an alernative.
My problem is that the job invocation is considered failed (or done if I use the "Power Action" to reboot) after step 3 and the last step (send end event) is never triggerd.

Is there a way to define dependencies between two jobs or to pause the job execution and wait for the reboot to happen?

Thanks for your help!
Manuel