For installation of the Indicator of Force on the diagram, we should click the button Indicators at a toolbar and select from the appeared menu Ocillators - Fors Index
After that, there is a window where we can change properties of the exposed indicator. We can select the averaging period, Moving average Parameter, what input data uses the indicator, fix a maximum and minimum, and also select visual settings.
The indicator of force is an interesting thing, as it was developed by Alexander Helder. It measures "strength" of bulls in case of each rise and "strength" of bears in case of each recession.
Usually this index is rounded by means of moving average.
Authors advise to use this index as follows: It is desirable to buy when during the ascending trend, the indicator of force will fall below the zero line;
It is better to sell when during the descending trend, the indicator of force rises above the zero line; and falls below the zero line;
It is better to sell during the descending trend, the indicator of force will rise above the zero line; and fall below the zero line;