William R % Strategy – Daily Chart

This strategy uses 3 indicators:
1.Williams R Percentage
2. EMA
3. WAE (Waddah Attar Explosion)

Buy only when price is above EMA.
Sell only when price is below EMA.
Buy when Williams R % closes above -20 level and WAE is above explosion/signal line.
Sell when Williams R % closes below -80 level and WAE is above explosion/signal line. 

                              Sell signal                                            Buy signal                  
Rules:                    
Trade only once, 10 minutes before candle close – Need the minutes to be adjustable – If lower timeframes are used. 
Stop loss is set at 1.5 x ATR 
Take profit 1 is at 1 x ATR
At TP 1, close 50% of trade and move Stop to 3 pips in profit. Never close the trade.
Following TP levels are TP 1 distance. E.g., TP1 were 50pis, so the next TP level is 50 pips.
When TP2 is hit, close another 50% of trade. Leave Stop where it is. So, every TP1 distance gained, take 50% off until price reaches entry level. So, say the trade hits TP1, and moves back to almost entry, and moves again the distance of TP1 in profit, take 50% off. 
Multiple trades can be taken only if initial trade has hot TP1 and SL moved 3 pips in profit. Same goes for 3rd, 4th, 5th etc. 
On Friday just before market close, if trade is in Profit, close 50% and move SL to 3 pips in Profit.
Very important – I want to trade 28 pairs at the same time. So, I need the EA not to risk more than, say 5% of my equity per day. Prop firm rules basically. 
I need to be able to adjust and optimize all indicators as much as possible.
Money management
2 Options:
Percentage of equity and Dollar amount.