Position and Secure Auxiliary Handle

What happens here

The host installs the auxiliary handle onto the shaft of the string trimmer. He notes that the tool includes an instruction label indicating where to place the handle for optimal ergonomics ("Place handle here"). Before fully tightening the handle, he advises adjusting its position to suit personal comfort and working posture. He then tightens the handle using a T30 Torx screwdriver (which he had separately, not included with the tool).

Goal: Attach the auxiliary handle and adjust it for ergonomic use