The FreetextDashboardParameter datatype includes various settings.

Table: FreetextDashboardParameter

idstringyes The unique identifier of the parameter.
labelstringyes The label or name displayed next to the input for the variable to make it more human-readable.
orderintegeryes A number that determines the order in which parameters are displayed on a dashboard. If null, the parameter is ordered after other parameters in alphanumerical order.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.