The KalmanFilter_StDev indicator with the timeframe selection option available in input parameters:
input ENUM_TIMEFRAMES TimeFrame=PERIOD_H4; // Indicator chart period (timeframe)
The indicator requires the KalmanFilter_StDev.mq5 indicator file. Add it to <terminal_data_folder>\MQL5\Indicators.

Fig.1. The KalmanFilter_StDev_HTF indicator
MetaQuotes Ltd tarafından Rusçadan çevrilmiştir.
Orijinal kod: https://www.mql5.com/ru/code/15247
NRTR
NRTR is a trend indicator calculated using the CLOSE prices.
Panel-joke or a game system
An example of using the MasterWindows library for creating a game trade panel.