At the top, add :

Code:
extern double SL=50;
extern double TP=50;
Then modify the ordersend :

Code:
OrderSend(Symbol(), OP_BUY, Lot, Ask, Slippage, 0, 0, "EA's name", Magic, 0, Blue);
becomes :

Code:
OrderSend(Symbol(), OP_BUY, Lot, Ask, Slippage, Ask - SL * Point, Ask + TP * Point, "EA's name", Magic, 0, Blue);
And,

Code:
OrderSend(Symbol(), OP_SELL, Lot, Bid, Slippage, 0, 0, "EA's name", Magic, 0, Red);
becomes :

Code:
OrderSend(Symbol(), OP_SELL, Lot, Bid, Slippage, Bid + SL * Point, Bid - TP * Point, "EA's name", Magic, 0, Red);