Dear Forum,

I kindly enlist your expertise in solving a programming issue with me. Programming is not my forte but I tried to use examples out of the forum, the Metastock formula help file and the internet to come up with the following formula. It unfortunately does not plot correctly and I am at a lost as to where to start to look. What I have been requested to do is the following:
* Indicator to plot in its own window
* 60 minute chart as basis
* Two close/open/high/low positions of different specific times. For example 10h00 and 19h00.
* Subtract these two close/open/high/low positions from each other and plot this value as an indicator.

Any suggestions as to my efforts below would be highly appreciated.

{ Time Inputs }
StHour:=Input("start Hour",0,23,6);
StMin:=Input("start Minute",0,59,0);
EnHour:=Input("last Hour",0,23,9);
EnMin:=Input("last Minute",0,59,0);
x:=Input("use Open=1 High=2 Low=3 Close=4 Volume=5 P=6",1,6,4);


{ Time period }
start:=Hour()>StHour
OR Hour()=StHour AND Minute()>=StMin;
end:=Hour()<EnHour
OR Hour()=EnHour AND Minute()<=EnMin;
filter:=
start AND (end OR (start AND Alert(start=0,2)));

{ Start/End time signals }
start:=filter AND Alert(filter=0,2) AND x;
end:=filter=0 AND Alert(filter,2) AND x;

{ Plot in own window }
start-end

Many thanks in advance,
Magda