We can configure this module in following two ways:

1st Way
=======

* Create a Report or edit existing report from Settings > Users & Companies >
  Batch Reports
* Add sequence number and select parent report or design your own batch report.
* Select subreport to add reports and save it.

2st Way
=======

* Active developer mode. Go to Settings > Technical > Actions > Reports.
* Create or edit report and select related model.
* Jump on "Batch report" tab and add subreport one by one.
* Drag up and down and arrange a sequence of report. Save it.