Averaging EA

The EA should not place an order if I didn't place an order manually.
The EA will place one averaging order at a time.
If the order is executed the next averaging limit order will be placed instantly.
The TP of each averaging order will be placed on either the original order or the closest averaging order for the second and following averages.
If a TP on an or der has been triggered the EA will automatically and instantly place another order at the same price as before.
This should be repeated as long as the manual trade is not closed. If the first manual trade is closed, all pending orders should be deleted and no new pending orders should be placed.
There should be a place where I enter how many orders the averaging EA will place ( for example it will not average more than 5 times).
I will also place the lot size and distance from the previous order of each averaging order separately, for example for the first order I will choose the size and distance in the input tab, these may be different than the next order.
Looking for the source code as well that contains a comment on each line that explains what the code line accomplishes.