"Categorized Scaled Grid Query Editor" requires 3 fields.
These include "Value", "Date" and "Category".
Date field, is used by the editor to create a date scale.
Category field, is used to group records so that records in the same category are on the same line in the scale.
Value field, provides the information to be displayed in line with its date value in the date scale in the category to which the record belongs.
As a result, the values of the min max dates in the date column are displayed in timeline according to the respective categories.