unicenta customization

Unicenta POS (Point of Sale, Inventory Management), folk from OpenBravo I Need The Features Below for my own use 1- in Restaurant Mode I need Button Transfer Item from table to another table. 2- Arabic & English keyboard pop-up just for Like [login to view URL], script.SetPerson. 3- No. of Guests ,Covers entry popup while clicking on table. 4- When Delete item from table after send order ask for reason, and a list of reason pop-up to select one of them. 5- add Void Button because the refund button has problem and i don't want to use it. 6- add feature for order when send to kitchen, bar, etc printer change color like not send=yellow, send=green. 7- The Plus+ and -Minus Button i want to use like when product1 qty2 it's send if i press plus+ button the qty will increase to 3 i want to print only the increased qty and also for minus if i press it will decrease qty1 and will print -1 product1 or 1 deleted if it's possible. 8- When the receipt it's printed the table (place) color will change to an color or text will appear on the table to let you know the receipt it's printed and waiting for the employee to bring the money from Guest to close the Payment of this table. 9- add service Charge automatically without need to press the "Service Charge" button. 10- add multiple Fixed Total Discount & Line Discount buttons like 10%, 20%, 50%,Free " and Discount as amount See Attachment. and add ability to add and remove discount because the normal discount button in unicenta when it applied i can't undo. 11- Can we Have like this Layout (picture attached below) in the new release Mobile apps, And more features (40 Point) points I will send upon contact me it's Very Important when you finish the Project to give me the "Source Code"