thank you very much for your help, but there is a simple structure in the link you posted, the structure I want to learn https://cdn.soft8soft.com/demo/blender/scooter/index.html the menu structure in this project. So when I click on a place on the left, I want its features to appear on the right side.
Can you provide us with detailed information about this? If we can solve this, we want to buy a license and continue our business from here.