Install portable air conditioner with push out window

Hi, I have three questions: 1. I’d like to install a window kit on my push-out window, but I’m not sure how. Could you please tell me how to do it? 2. If I need to close the window later, will I have to remove the entire window kit? 3. If I decide to uninstall the window kit later, how can I remove the adhesive tape without leaving any sticky residue on the window?