MACD and trend expert with TP/SL settings for MT4

Hello, using this strategy on a real account where it was pretty profitable i want to see how good it can be programmed. It is inspired by a video of tradingrush (https://tradingrush.net/i-risked-macd-trading-strategy-100-times-heres-what-happened/) , and after i tested it for real, it worked on most pairs (but still had a human touch so i dont expect the same results obviously).

MACD Cross expert rules

1                    First condition: Only buy’s if EMA is above 200 EMA and only sell signals if EMA is under 200.

2                    When first condition is met, in this case the price is above 200 EMA, so there is an uptrend, MACD crossings are taken, a long (bought) when they are under the 0 line of the MACD and a crossing occurs (standard settings). In a downtrend, so when price is under 200EMA, only crossings are taken if the MACD is above the 0 line. In live i would also want to look at the strenght of the historgram and only take when it had previous strenght (so big candles, i would not take a trade if the MACD just went above the 0 line, i only take it when it went really up or down in the macd), but i dont know if an expert can take this into account. 

3                    SL is based on the highest point of the last 5-10 candles plus maybe 1 or 2 pips (normally you set the SL above the highest point, but I think this comes close to that). 

4                    TP system: after the price reaches the amount of pips of the SL (lets in this case say the SL was 10 pips), and you are 10 pips in profit, I close 50% of the trade and go to BE and let the rest go 20 pips as TP (if the SL was 10). I also want to have the option to simply go 1R-1.5R etc.

Below is an example that the price is above the 200 EMA (black line) and the crossing on the MACD is under the 0 line, so a buy. I only trade 1 crossing at a time on the same chart (so only 1 trade on 1 pair on the same timeframe, i can however open 2 trades, 1 on the 1 hour, and 1 on the 8 hour on the same chart based on the system), so when the signal line of the MACD gives a valid signal but suddenly goes the other way again, I stay in the first trade and the second one is invalid. A next trade can only open again when the MACD went above/below 0 again (when it was reset).

Some extra conditions: when the 200 EME is touched, I only take the first trade if I get a proper signal on the MACD. For example, if you look at the picture above, the first trade touched the 200 EMA, i would have taken that, but if it would have touched the 200 EMA again, and in theory the signal is valid again, i would not take it (so 1 max touch of the 200 EMA).  The reason is that after that, when it keeps crossing the EMA, it is a sign of a ranging market and I don’t see the signals as valid. Maybe you can make a rule that after a second touch of the 200 EME in 40 candles, it won’t take trades anymore.

Also, I wonder if you can make It to that it can make trades on multiple timeframes at the same time. I use it on the 30min, 2 hour and 4 hour. Where the 30M uses 0.5% risk with the above TP/SL system, the 2 hours 1%risk, with the above TP/SL system and the 4 hour 1.5% risk, with the above SL/TP system.

I also expect some regular things: the hours it trades so you can also turn it off on set times (but obviously maintains the orders which ere already taken), a friday close, adjustable TP and adjustable SL,