To add functions to an EA (mt5)

I have a virtual straddle EA (mt5) that starts virtual straddle at a predefined time. It already has TP & SL (regular). 

More functions and qualities are needed.

1.ONLY ONE POSITION THROUGH EA + NO ADDING TO THE VOLUME

EA needs to have its own interface with "buy/sell" buttons - a clone of the platform's interface. If the straddle is faster to open a position and then I click buy/sell on EA's interface -> nothing happens, no volume is added. On the other hand, if I click faster than the straddle then the straddle must be immediately disabled and not appear again until removal from chart. The EA must always manage any position existing (*it already has the latter quality and it must remain).

***For example: EA started straddling at 13:00:00:000. At 13:00:00:479 I click and enter faster than the straddle. EA detects that -> the straddle is disabled. Some time later I close the position. If I enter a new position manually the EA will manage it but the straddle will be disabled until removal from chart. 

2.LOG.

EA must write to a log how it entered a position - the time and if it was the straddle or the click.

***For example: 12:30:00 straddle; 9:00:00 click  

3.VIRTUAL STOP LOSS.

Add virtual SL. The EA must close the position if the loss is $X or more (if the market gaps and the loss instantly becomes more than $X). I need to be able to set both virtual and regular SL or just one of them.

4.BREAK EVEN.

Predefinable points in profit at which the EA will Move the regular SL to break even. EA's interface on the chart needs to have a clickable button that can quickly turn on the Break Even function if it was set to false when setting the EA.    

5.PREVENTION OF ENTERING AT A MARKET GAP.

The EA must not enter a position if bid/ask gap more than X points (predefined by me).

***For example: the EA is set to start straddling at 13:00:00. If the last tick before 13:00:00 is by X points different than the 1st tick after 13:00:00 then EA must not enter until its removal from chart (*but it must manage the position if it's opened manually by me).

6.PREVENTION OF ENTERING AT A PLATFORM FREEZE.

The EA must not enter a position if there is no ticks income for more than X milliseconds (predefined by me) after the starting time of the straddle.

***For example: the EA started straddling at 13:00:00. It detects that there's no ticks income for more than X milliseconds -> it must not enter until removal from chart (*but it must manage the position if it's opened manually by me).

  

7.AUTOMATIC CLOSING OF THE POSITION

The EA needs to have a setting to close the position at a predefined time

8.BUTTONS FOR PARTIAL/FULL CLOSE.

There need to be 3 of them on EA's interface on chart. Each one can be predefined with certain volume to close. They need to be always functional with any open position (no matter if it's opened through EA or through platform's buy/sell). Each button needs to show the volume that I set for it.

***For example: When setting the EA I set the first button to close 2 lots, the 2nd button - 0.5 lots and the 3rd - 0.25 lots. Later when I have a 3 lot position opened I can close it gradually with 4 steps.