Indicator EMAVFS_channel with the timeframe selection option available in input parameters:
input ENUM_TIMEFRAMES TimeFrame=PERIOD_H4; // Indicator chart period (timeframe)
For the indicator to operate, the EMAVFS_channel.ex5 indicator must be added to the <terminal_data_directory>\MQL5\Indicators folder.
Fig.1. Indicator EMAVFS_channel_HTF