When you look at the Structure tab for a Creo CAD assembly in Windchill, the table view is set to Separate Uses by default. Every single instance of every component, down to each fastener, appears on its own line in the table view.
By clicking Display > Merge Uses in the Viewing group, components will be grouped together on the same line in the table view. However, there is no way to set this as a default.
When looking at the top level assembly, especially for complicated models, it is useful to have Merge Uses set as the default. However, there is no way to do this. There is an SPR (2155064) from 2012, but it is set to "No plans to fix" (which makes no sense).
There should be a preference to allow Merge Uses to be the default instead of Separate Uses.