In order to add a column to a screen results, click on Add Column text (near Add Rule). Type the column name and formula that will be used to display the column data. If for example you want to display the volume of each symbol for the screen date, simply type "volume" in the Formula field. Click "OK" when done. You will notice that a new line is created and this line contains the function "AddColumn", which accepts two parameters. You can also create a new column directly without clicking on the Add Column text. To do this, click on Add Rule. Click on the operator control and select the first item "Display only". In the input field, type the "AddColumn" formula. For example: AddColumn("The Volume", volume) Note that in the rule editor you don't have to type ";" at the end of each instruction. The ";" is automatically added before the formula is compiled.
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