Tips for disassambly
When you need to disassemble, just reverse the install steps. But there are also some tips for you.
Notice to wrap your palm around the end of the lever while your thumb and forefinger press the side button. Otherwise, the end of the lever will pop up when you press the button, potentially hurting you. And then squeeze the lever end of the support pole out of the side pole, after which you can disassemble it easily.