In Uniconta, you can design your own reports via the report generator.
It can be found under Tools.
You can find documentation about the report generator on DevExpress, including a few useful links.
Uniconta includes a Gallery - "Report Gallery"
The gallery is used to collect information you need for other reports, as a kind of template.
https://www.youtube.com/watch?v=SEaEMVFoIAw
A little about the controllers
https://docs.devexpress.com/XtraReports/2605/detailed-guide-to-devexpress-reporting/use-report-controls
A little about filters
https://documentation.devexpress.com/WindowsForms/114645/Controls-and-Libraries/Data-Grid/Get-Started-With-Data-Grid-and-Views/Walkthroughs/Filter-and-Search/Tutorial-Filter-Editor
Summaries and counts
https://docs.devexpress.com/XtraReports/5289/detailed-guide-to-devexpress-reporting/shape-report-data/shape-data-legacy-data-bindings/count-the-number-of-records-in-a-report-or-group
A bit about parameters (data delimitation)
https://docs.devexpress.com/XtraReports/9866/discontinued-platforms/silverlight-reporting/lesson-3-create-a-report-with-parameters