Custom functions and methods can be used to enhance regular report capabilities due to the use of custom calculation methods.
By default, custom functions are not connected to the Reports tool. To connect custom functions, see the Connecting Custom Functions article.
Connected custom functions will be displayed in the function wizard in the Custom Functions category, for example:

If a custom function is a parametric one, the right part of the wizard will display the list of its parameters.
After the custom function is selected, and its parameters are set, the selected function will be calculated. Calculation results will be displayed in the report sheet. If any errors occur on calculation, they will also be displayed in the report sheet.
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