Grid Ea please help me!

Hi! I have a grid Ea and I need to modify/improve:

-) I'd like to check if after certain time the running trade is closed,  please stop the EA - No more orders;

-) verify the close order routine of the EA, it's very slow, sometimes some pending orders remain;

-) improve the target and stop loss level routine. levels are not the same, there are some little differences;

-) if a certain number of orders is working, change the step of next orders and change all target prices and stop losses (please suggest an idea).

thank you, bye.