Add features to an existing WordPress Plugin [URGENT]

Hello! I have a WordPress plugin in which I want some features to be added, those new features are available in other plugins I want you to duplicate the same functionality on the current plugin which I have. Basically current plugin offers drag & drop elements and I want some new elements to be added such as: 1. Optin Box (copy from another plugin) 2. Countdown timer (I will give the files/codes) 4. Ad and thought of the day - rotating random texts/html codes which are added. Needs to be done in 1 day.