Simple Grid EA

I need EA for MT4 that will make pending orders upto 10 steps ( limit order) after i made an execution .Example :

1. i made order buy AUDUSD at 0.7500 / 0.01 lot

 tp : 0.7550

sl : 0.7100

 Andthen after this execution , EA will make automation :

Step 1 : BUY limit  with parameters ( if first order SELL, then EA will make limit sell ):

Price : xxxx points  ( it fill with points distance that i want buy limit from my first order ) example : if i fill with 50 ,EA will buy limit at 0.7450

Lot : xxxx ( box parameters i can fill myself) 

tp : xxxx points ( fill free by myself ) example: if i fill 50 ,then EA will make tp at 0.7500 

sl : have 2 option : first :same with first order ,or second is parameters that i can free fill .example : if fill with option same ,it will be 0.7100 ,or if parameters i fill with 100 ,it will be sl at 0.7350 

Step 2 : EA only will make this buy limit if Step 1 was executed .

Parameters details are same with before

 Step 3 :EA only will make this buy limit if Step 2 was executed

 and so on

 , if example step 5 are blank ( i dont fill the parameters) it wont be add up the pending orders

IF TP is reached , all order will be close