Is SubTotals / GroupBy Exist in ErpNext Reports

In our line of business subtotals are necessary in variety of reports. Even in Item master I need to group items by supplier or group items by Manufacturer.

Furthermore, I need to calculate sub totals in reports.

Are these things possible in Erpnext 14 out of the box?
In Balance Sheet report tree like structure has achieved the similar thing. But I am not sure, whether
it will work, where large number of columns are involved.

Found it. Grouping/ subtotals exist in item-wise Sales Register Report.