The Eclipse TX's provides two distinctly different paths to dual elevator mixing; TX production/age dependent.

Some late model Eclipse TX’s inexplicably realized software changes and NOW offer a feature/function called out as “AILV”. AILV is a pre-programmed factory MIX with trims linked between channels. (AILV is not noted in the Eclipse manual; see the link below to the Optic 6 manual)

Earlier Eclipse TX’s are limited in this regard, it’s doable with a P-mix BUT the AUX channel trim is not linked to the master mix channel and a switch must be active ALL the time.

See the manual for more info on same. If you don't have a manual, click on the link below.

http://hitecrcd.com/Support/Manuals/Radio/eclipse.pdf

The Optic manual on page 39 desribes the AILV feature:

http://hitecrcd.com/Support/Manuals/...Manual%202.pdf