Extending scope of formula parameter documentation

Please consider extending the structure of the parameter description. Currently based on documentation: https://github.com/GBonnaire/jspreadsheet-plugins-and-editors/wiki/Premium-plugin-:-Formulas-statistics#formula-documentation we have the following attributes documented for a parameter:

type - type of the parameter
comment - parameter description I would consider extending it for the following new ones:
array - Boolean information on whether the parameter is of vector or scalar type
mandatory - Boolean information on whether the parameter is optional or mandatory;
default - the default value for the parameter;
possible values - the set of possible values ;

GBonnaire / jspreadsheet-plugins-and-editors