Custom a joomla pluggin

HI I all ready have a pluggin in Joomla, I want to Synchronisation with this pluggin: [login to view URL] [login/pass:demoadmin] go to "Invoice managers" 1- Add this module icon in my pluggin [[login to view URL]] 2- Share the client database of menu "Contacts" with "Client" in Taxibooking 3- Delete the menus "Contacts, Taxe" 4- The menu "Products" should be "Orders" of Taxibooking 5- About "Invoices" -- "Items" should be the "Order" of Taxibooking 6- All menu should be stay "Items": - SKU should be Order Number - Name should be Name or Name passager - Value should be Price (without tax) 7- In "Invoices" the tab "Items" delete the column "Description, Quantity, Tax" Kind regards