My recall as well. I believe the ailerons were coupled to damp roll as an integral function of what Lockheed assumed would "FBW" or manage slight flight path correction to deliver an "auto" ride, faster than Human. I don't remember why it wasn't considered just a more responsive and more finely tuned A/P.
The L-1011-500 Extended Wing/Active Controls was used to use take advantage of the reduce drag that comes with an increased span (higher aspect ration) wing. There is a 4 1/2 foot extension on each -500 wing. Vertical accelerometers sence an increase in wing loads due to gusts or maneuvers and reposition both outboard ailerons to reduce lift. Reducing lift on the extended outboard wings shifts the loads inboard and lowers the stress to a level equal to the shorter (low aspect ration) wing found on the earlier TriStar models.