This indicator takes the current symbol (ex. BITFINEX:NEOUSD), looks for long and short positions in Bitfinex and displays the total volume of margin positions.
When you hover the indicator you can see the total volume in blue, the volume of long positions in green and the volume of short positions in red.
This indicator is meant to be combined with the Bitfinex Sentiment Oscillator indicator in order to get the full picture of margin positions.