defparam cumulateorders=false

// --- settings
value = 7200 //daily FTSE 8am open price
myTarget = 1.25 //target profit coefficient
Capital = 25000 //capital at starting of the strategy
Risk = 2 //risk in %
StartTime = 080000
EndTime = 163000
// --- end of settings

//indis
ema20 = average[20,1]
istd = std[20]
bollup = ema20+(istd*2)
bolldn = ema20-(istd*2)
tcondition = (time>=StartTime and time<=EndTime) and (opendayofweek>=1 and opendayofweek<=5)

if tcondition then
//short orders
if high-ema20>Value*0.0002 and low>bollup then
//money managenemt
sellentry = low-1*pointsize
sellstoploss = high+2*pointsize
StopLoss = sellstoploss-sellentry
selltarget = StopLoss*myTarget
equity = Capital + StrategyProfit
maxrisk = round(equity*(Risk/100))
PositionSize = abs(round((maxrisk/StopLoss)/PointValue)*pipsize)
//pending order
sellshort PositionSize contract at sellentry stop
set target profit selltarget
set stop loss StopLoss
endif

//long orders
if ema20-low>Value*0.0002 and high<bolldn then
//money managenemt
buyentry = high+1*pointsize
buystoploss = low-2*pointsize
StopLoss = buyentry-buystoploss
buytarget = StopLoss*myTarget
equity = Capital + StrategyProfit
maxrisk = round(equity*(Risk/100))
PositionSize = abs(round((maxrisk/StopLoss)/PointValue)*pipsize)
//pending order
buy PositionSize contract at buyentry stop
set target profit buytarget
set stop loss StopLoss
endif
endif

//graph high-ema20>value*0.2 and low>bollup

Many thanks Roberto.

Seems to work ok, good to learn so hopefully I will know a bit more for the future.