To display round levels on the graph with the price fit well Key Levels indicator , the main purpose of which - allocation levels, ending at 00, 20, 50 and 80.

Round levels - strong psychological levels, ending with two zeros in the case of a four quotation after the decimal point (for a two-digit pairs with Japanese yen) or three zeros in the case of the five-digit (three digits in pairs with JPY). Those. On the EURUSD pair, these levels will be quotations of 1.1500; 1.1600; 1,1700; 1,1800, etc., and for the EURJPY pair - 128.00; 129.00; 130.00; 131.00, etc.

In the indicator settings, the displayed levels are divided into 2 groups 00/50 and 20/80, and there is a possibility to disable one of them.
If you will be only one level of a particular group (for example, 00 of the group 00/50), the second color can be made under the background color, and then visually it will not be viden.Rassmatrivaemy indicator Key Levels designed for use in the trading platform MT4 and It has the following settings:
Show_00_50_Levels - enabling / disabling levels ending at 00 and 50.
Show_20_80_Levels - enabling / disabling levels ending at 20 and 80.
Level_00 / 50/20/80 _Color - color selection data layers.
Levels 20, 80 and 50 can also be used in their trading. The main idea of ​​their application is as follows: level 50 is half way to the next round level, which can also "slow down" the price; And levels 20 and 80 are boundary values, the overcoming of which may indicate a final breakdown or a rebound from level 00.