This simple script draws the previous higher timeframe candle high/low to your chart.
You can also make the script paint the zone between the low/open and the high/close.
This script plots a higher timeframe EMA to your chart.
You can specify the timeframe and the length of the EMA in the settings.
This chart demonstrates the 5-minute 50EMA (black) combined with the 1-hour 50EMA (colored) on the 1 minute timeframe.