VGridLine_Intraday X4 - indicator for MetaTrader 5

The indicator displays the vertical time grid with four hours step on a chart with intraday timeframe not exceeding H4. THe indicator is also not displayed on H3!

Indicator input parameters:

//+----------------------------------------------+ 
//| Indicator input parameters                   |
//+----------------------------------------------+ 
//---- general settings
input string LinesSirname="VGridLine_Intraday_X4"; // Line name
input uint WeeklyTotal=4;                       // Number of weeks in history for indexing
input uint FutureTotal=1;                       // Number of lines in future for indexing

//---- settings for week bars
input color Line_Color_W=Gold;      // Week line color
input STYLE Line_Style_W=SOLID_;   // Week line style
input ENUM_WIDTH Line_Width_W=w_5; // Week line width
input bool SetBackground_W=true;    // Week line background display
input uint FutureTotal_W=1;        // Number of lines in empty future history
//---- settings for day bars
input color Line_Color_D=Red;      // Day line color
input STYLE Line_Style_D=SOLID_;   // Day line display style
input ENUM_WIDTH Line_Width_D=w_5; // Day line width
input bool SetBackground_D=true;    // Day lines background display

//---- settings for intraday bars (4 hours)
input color Line_Color_D1=Gray;        // 4 hours line color
input STYLE Line_Style_D1=DASHDOTDOT_; // 4 hours line style
input ENUM_WIDTH Line_Width_D1=w_1;    // 4 hours line width
input bool SetBackground_D1=true;       // 4 hours line background display

//---- settings for intraday bars (8 hours)
input color Line_Color_D2=Lime;         // 8 hours line color
input STYLE Line_Style_D2=SOLID_;      // 8 hours line style
input ENUM_WIDTH Line_Width_D2=w_2;    // 8 hours line width
input bool SetBackground_D2=true;       // 8 hours line background display

//---- settings for intraday bars (12 hours)
input color Line_Color_D3=Gray;        // 12 hours line color
input STYLE Line_Style_D3=DASHDOTDOT_; // 12 hours line style
input ENUM_WIDTH Line_Width_D3=w_1;    // 12 hours line width
input bool SetBackground_D3=true;       // 12 hours line background display

//---- settings for intraday bars (16 hours)
input color Line_Color_D4=BlueViolet;  // 16 hours line color
input STYLE Line_Style_D4=SOLID_;      // 16 hours line style
input ENUM_WIDTH Line_Width_D4=w_2;    // 16 hours line width
input bool SetBackground_D4=true;       // 16 hours line background display

//---- settings for intraday bars (20 hours)
input color Line_Color_D5=Gray;        // 20 hours line color
input STYLE Line_Style_D5=DASHDOTDOT_; // 20 hours line style
input ENUM_WIDTH Line_Width_D5=w_1;    // 20 hours line width
input bool SetBackground_D5=true;       // 20 hours line background display