[TenTec] Corsair II: tune function?

[tlogan7 at cox.net]

Hi folks -
I've been doing some initial tinkering/familiarization with the Corsair II.
As far as I can tell there is nothing analogous to a "tune" button to
activate an automatic antenna tuner. The only way I see around this is by
using the Tune function from my Logi-Key - which is fine - but I was curious
if I had missed any other means of activating an auto-tuner (LDG-AT11).
Thanks folks.
73/Tim