Ok so I will create a new function for the prev based latch based on Roy's example: {Example 6} N:=Fml("set signal"); X:=Fml("reset signal"); Tr:=If(PREV=0,If(N,CLOSE,0),If(X OR C>=PREV*1.2,0,PREV)); Tr; So a very basic version of this would be: [code:1:7c2a41f587] void LatchPrevC ( const MSXDataRec * Data, const MSXDataInfoRec * Input1, const MSXDataInfoRec * Input2, MSXDataInfoRec * Result) { int startIdx = Data->sClose.iFirstValid; int endIdx = Data->sClose.iLastValid; int i; Result->iFirstValid = startIdx; Result->iLastValid = endIdx; for (i = startIdx; i <= endIdx; i++ ) { if(i==0) {Result->pfValue[i] = 0;} else if(Result->pfValue[i - 1] == 0) { if(Input1->pfValue[i] == 1){Result->pfValue[i] = Data->sClose.pfValue[i];} else {Result->pfValue[i] = 0;} } else { if( Input1->pfValue[i] == 1 || Data->sClose.pfValue[i]>=( Result->pfValue[i-1]*1.2) ) {Result->pfValue[i] = 0;} else {Result->pfValue[i] = Result->pfValue[i-1];} } } } /* Based on Tr:=If(PREV=0,If(N,CLOSE,0),If(X OR C>=PREV*1.2,0,PREV)); */ [/code:1:7c2a41f587] So How do we improve it from here? What is needed? How do you see working? How do we make this more flexible? Patrick :mrgreen:

Roy, I would love your feedback on this so take your time ;) I won't do anything until I get your reply ... Anyone is welcome to give their opinion as well of course :) Patrick :mrgreen: