Customize wordpress plugin

Please read the description before you make a bit! :) Add a row below padding where you add a “service” If a length of a service is 2hours. I want to be able to open a spot after “x”minutes. Example:You are at a hair salon and getting your hair colored that takes about 2 hours.. After 1hour the color needs to dry for 30 minutes. In that 30 minutes, I can cut someone elses hair. So when someone order, lets say hair color, A whole 2 hours disapeer from the calander. Plz fix that :) Connect each staff members calander to ICal(mac) or CCalander(Windows). Create a export button that export the calander to excel. Show ip adress with every booking! After “X” minutes. Open booking slot on calander for “X” minutes (So you can book a time in another time) Between “Phone” and “Submit” add a math solving code. If you dont solve this you cant hit submit. Example: what is 3 + 4 = _____