Intraday Range on minutes chart with Trend Line

Hello Pete,

I been working on one custom indicator on Trade station where it put Trend Line at the High and Lows of time range ,also put a Text at High and Low value with Total range (High – Low) ,and it should work on any minutes chart ,

Here is so far i got into this indicator code ,currently code put a Trend line at High and lows of specific time range , but I have notice some issue with it and need your help with it please

Issue 1) Multiple trend line on top of one another , If time range is 60 min then on chart i see 60 Trend line at High and 60 trend line at the lows
Issue 2) Multiple Highs and lows range on chart Historically is fine , but I have noticed multiple range within same time range
I have attached image one with issue I’m having with this indicator when i plot on chart , and one image which i’m trying to achieve as a end results

Here is the trade station code

Input: StratTime(1400),
EndTime(1530);

Vars: PeriodHigh(0),
LastPeriodHigh(0),
PeriodLow( 999999 ),
LastPeriodLow( 999999 );

// Find High
If T >= StratTime and T <= EndTime then
Begin
If H > PeriodHigh then PeriodHigh = H;
If L < PeriodLow then PeriodLow = L;
End;

If T > EndTime and T[1] <= EndTime then
Begin
LastPeriodHigh = PeriodHigh;
PeriodHigh = 0;
LastPeriodLow = PeriodLow;
PeriodLow = 999999;
End ;

Value1 = TL_New (D,StratTime,LastPeriodHigh ,D,EndTime,LastPeriodHigh );
TL_setcolor (Value1, DarkGreen);
Tl_setsize (Value1, 1);

Value2 = TL_New (D,StratTime,LastPeriodLow ,D,EndTime,LastPeriodLow );
TL_setcolor (Value2, RED);
Tl_setsize (Value2, 1);