We are finding experience WordPress developer who have best knowledge of Plugin customization. Need to customize my booking plugin of hotel theme. In the theme the booking plugin showing 4 options by default and there is not any option to add more payment gateways. I need to add payumoney gateway on backend in booking plugin and so on showing on the front page of checkout. So that user can payment through his debit/credit card. My site url is [login to view URL] and I attach 2 screenshots of booking plugin and checkout page where I want the payumoney gateway.