Справка LibreOffice 24.8
You can group records in a report based on the values in one or more fields. Select the fields by which the resulting report will be grouped. You can group up to four fields in a report. When you group more than one field, LibreOffice nests the groups according to their group level.
Lists the fields from your selection on the previous page of the Wizard. To group the report by a field, select the field name, then click the > button. You may select up to four levels of grouping.
Lists the fields by which the report will be grouped. To remove one level of grouping, select the field name, then click the < button. You may select up to four levels of grouping.
Click to move the selected field to the box that the arrow is pointing to.
Click to move the selected field to the box that the arrow is pointing to.