I need an expert advisor thet work on pending order.

The expert will work like this: on the chart there will be 3 buttons, one activates / deactivates the automatic function (automatically
it will always work in the trading range indicated in the robot), if deactivated the semi-automatic will work with two other buttons
where one activates the robot and the other deactivates it. (regardless of the trading range).

When active, the robot places two pending orders BUY and SELL at a distance of X pips from the price; every Y milliseconds, the robot
modifies the pending orders in such a way as to always keep X pips at the same distance from the price.

We will make it possible to place multiple pending orders; in this case, subsequent pending orders will be at a distance of X pips 
from the pending orders preceding it.

When the order is activated, all other pending orders are canceled and the active order will be managed by Stop loss, take profit and
trail, even virtual ones.

We will pause for Y seconds once the trade is closed, and the robot will resume analyzing the price; if 0, the robot will immediately
resume placing new pending orders.

Furthermore i need to add this function (true/false): the robot read a .txt file which has the same name as the instrument
(for example if I open the xauusd chart the txt file will be xauusd.txt) where inside there is a quote readed by a provider;
if the difference of the quotes between the broker's bid and the bid quote of the .txt file exceeds a certain value x pips, the robot
immediately modifies the pending order putting it at a distance of y pips from the current price. obviously corrects the pending order
in the direction of the explosion (if the price discrepancy is negative then it corrects the pending sell stop order, if the price
discrepancy is positive then it corrects the pending buy order) and cancels the other pending order .the price discrepancy should be
displayed on the chart: txt file quote - pair bid quote.

SPECIFICATIONS

Time trading (only if the semi-automatich trading is off)
Lot: fixed or % on balance
Max spread (0 disabled)
Order comment
Take profit (0 disabled)
Stop loss (0 disabled)
Start trailing (0 disabled)
Stop trailing (0 disabled)
Step trailing (0 disabled)
Virtual tp/sl/trail: true/false
Breakeven after X pips: 0 disabled
Distance pending orders from price: X pips
Number of pending orders: X
Update pending orders every: X milliseconds
Pause after closed trade: X seconds (0 disabled)
Filter from txt file: true/false
Gap X pips to reduce pending order: X pips
Distance pending order from price if gap is reached: X pips
Magic number