Edit comtchat PhP chat software.

Basically i need few features. 1. I need schedule function in individual chat window. Pls refer to my first picture i have attached before. Then when i click that schedule feature it should open pop up like picture two. Then tutor or student should be able to create lesson schedule. 2. After they create lesson schedules student and tutor should see those under their personal page like picture three. Then when they start a lesson whiteborad function should start along with audio video and chat function. for whiteboard you may can use open source one has such as math formulas html codes ie that. Also i need a timer to record how long they had their session. 3. In chat section students should only see tutors. They shouldn't not see other student's