New to vCo: best practice to to wait for a Host restart

Hello,

I'm new to vCo and I start writing my first workflow.

I need to: set an Host in maintenance mode, move in another cluster, [make some other works, i.e. update and or change conf], reboot, move to initial cluster, exit from maintenance mode.

Initially it is all ok, but when the host start rebooting, vCo start the next task (move) and then the next ( exit from miantenance mode).

Which is the best practice to tell workflow to wait until an host completely restarts?

Thanks in advance,

Davide