MTF EMA Clusters

This indicator can display three different timeframe EMA clusters simultaneously.
The default timeframe of three EMA clusters is 1 hour, 4 hours, 12 hours, and each EMA cluster contains three lines: ema55, ema89 and ema200, respectively.
In addition, this script supplys user to customize EMA cluster 1 whether to use the current timeframe and whether to display EMA cluster 2 and EMA cluster 3.