Robot to change take profit figure for all open trades of same type for a specfic currency pair

Example ... I trade GBPUSD ... buy 1 lot at 1.31500 and i define my parameter to hit target profit as US$20 ... robot to set tp figure so that i will achieve desired profit amount

If the price go in the wrong direction and I place an additional buy order of 1 lot at 1.31450 ... robot to amend the tp figure for both buy orders to a similar figure so that i can close both buy orders when target profit is achieved ..

If the price continue to go wrong and I place an additional buy order of 1.5 lot at 1.31390 ... robot to amend the tp figure for all 3 buy orders o similar figure and close all 3 buy orders when target profit is achieved ...

Robot should be able to allow me to place both sell and buy trades for same currency pair and track all buy orders as 1 transaction and all sell as another transaction ... ie .. upon additional placement of sell order ... robot to amend tp figure for all sell orders only to achieve set profit figure and close all sell orders when tp figure is achieved ... upon additional placement of buy order ... robot to amend tp figure for all buy orders only to achieve set profit figure and close all buy orders when tp figure is achieved ...