Add non- inventory item report including quantities and value
That is impossible. Non-inventory items are not tracked in Manager. They are only shortcuts for data entry. The type of report you request requires a control account with subsidiary ledgers. Neither exists for non-inventory items. See the Guide: Create non-inventory items | Manager.
Technically speaking, Manager has the data so it could show quantity totals for non-inventory items too. But this feature request is insufficient. It needs “story” to justify why is this needed.