Hourly Midline

Description:
The indicator displays horizontal line in the middle of each hourly candle. You can change the source for calculating the middle level (either middle between High and Low of hourly candle, or middle between Open and Close). It is intended for use on minutely timeframes.

Parameters:
- Source -> source for calculating the middle level
- Line width -> width of the middle lines
- Line color -> color of the middle lines
- Show 1H candle levels -> display the levels used to calculate middle level