MT4 plugin not allow hedging and close open trades with FIFO

We are looking for some experienced C++ developer who can develop plugin for MT4 (Meta Trader4. This plugin will not allow clients to hedge their open trades only they can buy or sell and close open trades with FIFO (First In First Out), with this method trader will have to close first open trade first if he has more than one trade open first he will close first open trade then he will be able to close later opened trades.