A semi-automatic transmission is in which some of the operation is automated (usually the actuation of the clutch), but the driving force's enter is needed to maneuver off from the standstill or to change gears. A lot of early variations of such transmissions were being semi-automatic in Procedure, including Autostick, https://automobile-gearbox74949.pages10.com/a-review-of-automobile-gearbox-69479228