Use
Since the Product Structure Browser is a tool that can display a large number of different objects in the R/3 System, you should define your own display filters for Plant Maintenance and Customer Service to help improve performance.
Procedure

Note that a filter defined in this way is user-specific. If you want to define a filter that can be used generally, you must define it in the Customizing for Logistics - General.
Result
You have defined a filter that you can select when you call up the Product Structure Browser. To do this, choose the Filters icon and activate the required filter. Which filter is active is displayed on the initial screen for the Product Structure Browser. You can change the filter at any time.