HMA Trend Indicator

I need the following indicator converted into an EA.

https://www.mql5.com/en/market/product/22515

Start of Trading Robot

If EA is dragged on a chart I would like to start/stop with a visible button on chart.

If flat and EA start button is pushed then enter on the next available signal.

Entry rules

First, I would like to choose between long, short, both in an input function

for Longs:      if bar closes and buy signal appears then Buy on the Highest High of the last 2 bars (including current bar)

for shorts:      if bar closes and sell signal appears then Sell on the Lowest Low of the last 2 bars (including current bar)

Positions

Allow pyramiding. I would like to addon to existing contracts on every new signal x contacts in the direction of the Arrow

Number of contracts

Through Input function for

1.      Fixed number of contracts to start

2.      Fixed number of contacts for addon

2 Exit rules (same for Long and short Positions)

1.      Stop Loss: Use a trailing stop for exiting all positions or

2.      Exit all contracts on the push of the EA stop button.

Whichever comes first.