When I was learning to fly helicopters, I'd practice slow hovering,
fast taxi, sideway hovering, backward hovering take off at the end of
the runway for a complete pattern and repeat or I would exit the
pattern and fly away or I might come to a complete stop and hover to
the ramp.

"Clear for the option" meant that I can do as I have requested from the
tower (I have the option of doing one of the things that I have
requested to do).

The Monk