This is a trial script that searches for Vegas buy/sell signals in different time frames.
When a Vegas signal is found, it remains valid until the Vegas tunnel at that time frame is broken (i.e. 12 EMA crosses 144 EMA), or the candle closes across the 200 EMA.
When a signal in a lower time frame is found, the Vegas signal in higher time frames are also considered to be valid, as long as the corresponding EMAs are in the appropriate order. And when the Vegas signal in a lower time frame is invalidated, the script automatically switches to the next higher time frame that is still valid.
The Vegas tunnels when the buy/sell signals are valid are shown as green/red lines. The time frames considered are 30m, 1H, 2H, 4H, 6H, 12H, and 1D.