This indicator is based on the Wave Support Resistance Indicator. The “BUY” text means the current price is below the support line of
corresponding timeframe. Similarly, “SELL” text for the resistance line.  They are updated automatically. Before
attaching the indicator to the chart, you can change the colors for the BUY and SELL texts in the input section of the indicator. For more info,
read the description of the following product 

You can buy the Full Version of this product at  which
works all currencies.

Moreover, you must add suffix entry in input section, if your broker and your trading symbols have suffix to their common name. All the major pairs and
cross pairs are covered in this indicator. And 4 timeframes are also covered as shown in the screenshots.