You can preview the Inventory report document in the 'Report Editor'

From the dashboard, select 'Jobs' 

Select your Job from the list and select 'Report Editor' from the tabs at the top of the screen.

In the 'Report Editor' select 'Report Layout' from the left hand side of the screen.

If you have made further changes to the data in any of the sections in the Report Editor, you will need to select [Refersh Report]