How can I access to the top screw on SliderPLUS?

Related articles

• How can I attach a tripod head on top of the SliderPLUS?
• My SliderPLUS is not smooth as it is used to be. What can I do?
• I can't remove the magnetic belts on the SliderPLUS. What do I do?
• How do I attach the leg extensions to the SliderPLUS?
• How do I change the belt on my SliderPLUS v4?