Astrogator AddMCSSegmentControl is a command that sets an independent (control) variable for a segment within a target sequence.
Astrogator <Satellite Object Path> AddMCSSegmentControl <Attribute Path> <Attribute>
The attribute of this command is an independent variable. Any numerical element of a segment within the target sequence is eligible to be selected as an independent variable. Refer to the Attributes section of this help system if you need to find the Connect syntax name for an element you want to select.
Astrogator */Satellite/Satellite1 AddMCSSegmentControl MainSequence.SegmentList.Target_Sequence.SegmentList.Maneuver ImpulsiveMnvr.Cartesian.X
STK Programming Interface 11.0.1