Add PayPal Adaptive Payments to WPMUdev Appointments+ WordPress Plugin.

I need a programmer to make a change to the [login to view URL] WordPress Plugin Called Appointments+. More information on this plugin is available here: [login to view URL] Currently the way this plugin works is that the site owner can enter their own PayPal email address in the wp-admin. When a customer comes to the website and schedules an appointment for a selected service they are redirected to PayPal to pay for the service. When they make the payment the full amount goes to the Paypal email address of the site owner. I need this changed to use PayPal Adaptive Payments instead. So when a customer comes to the website and schedules an appointment with a selected service provider the payment gets split between the site owner and the service provider. 1) In my service providers profile page they need to be able to enter their own PayPal email address. This will be the PayPal email address that their share of the split payment is sent to. 2) In the wp-admin area for the appointments+ plugin there is a page for settings, and there is a tab for creating services offered on the website. Here you set the service product name and price. On this page I would like to also be able to set a percentage% amount. This percentage% will be the amount that gets paid to the service provider based off the price that is set for the selected service. I should be able to set a percentage% amount for each product/service created as I will be charging different percentages% for each product. 3) In the wp-admin area for the appointments+ plugin there is a page for settings, and there is a tab for general settings. On this tab there is a section for payment settings. This is where the site owner enters their PayPal email address. I would like something added to this area which is a PayPal variable. PayPal allows you to create custom checkout pages for your different websites. I would like a spot here to enter this variable so when the customers click to pay they are sent to the custom checkout page. 4) I need 1 other change that is not related to the payments but is also a change to the appointments+ plugin. I just need 1 thing changed in the CSS to change the background color on the appointment calendars. [login to view URL] frequently makes changes and updates to this plugin so I need all these changes made in a way that I will be able to update the plugin without overwriting these changes. I need these changes made asap. I am willing to pay $100 for the stated changes upon completion of the project. Download of the Appointments+ WordPress Plugin and start working immediately. [login to view URL] You can set it up on WordPress on your own server to complete the modifications. The first person that can show me a completed working demo of this will win the $100. I will make the payment to you through Freelancer and then you can apply the changes to my website. I am available to answer any questions you have. Thank You