find trailing stop correctly

[tradingconig]

idea : trade open at market price 1000 whit stop 40 pips ( at 960 ) . if market move up 20 pips an price move 1000 to 1020 the stop loss move up ( at 980) . if price move up 20 pips to 1040 the stop move up at 1000. for this idea of trailing stop the correct block is ?
buy now ( block) : input no stop loss
trailing( block ) : trailing stop 40, trailing step 20, pips 1?
is this correct? if no, what is the correct input for this idea?

[tradingconig]

documentation :
If (Current Price - Stop Loss) >= (Stop + Step), then move Stop Loss to (Current Price - Stop)

so about my example is (if 1020-40) > (60) then move stop to ..... it's no sense. obviously then current price -40 > of 60 ..... what i don?t understand?
it's seem simple but i'm no good to do what i want

[l'andorrà]

@tradingconig This is what you need: