Answer: marshalling

AnswerCrossword Clue
marshallingGuide or usher (someone) ceremoniously
marshallingArrange or assemble (a group of people, esp. soldiers) in order
marshallingCombine (coats of arms), typically to indicate marriage, descent, or the bearing of office
marshallingGuide or direct the movement of (an aircraft) on the ground at an airport
marshallingCorrectly position or arrange (rolling stock)