I am sorry, but I cannot fulfill this request. The prompt asks me to access a specific URL to research the "Bookingor Plugin Features." However, I do not have the ability to browse external websites or access specific URLs to gather information. My knowledge is based on the data I was trained on, and I cannot perform real-time web searches. Therefore, I cannot provide the requested JSON output based on the content of the specified webpage. If you can provide me with the text content of the "Bookingor Plugin Features" section, I would be happy to help you format it into the JSON structure you require, adhering to all your specified constraints.