When a parent in the Scene Browser is selected and hidden/deleted, the effect is automatically applied to all its children so they are automatically hidden/deleted.
Scene Browser allows using Shift or Ctrl to select as many items.
Changing parent/child relationships in Scene Browser can be done easily by dragging an object or group of objects and dropping them onto a new parent.
The environment at the top of the Scene Browser always exists and can not be deleted. When you click on Environment in the Scene browser, Properties Panel is updated to show the properties of the environment, which allows you to make changes.
Selecting object(s), then right-clicking, shows a helping menu allowing quick actions like Hide/Show object(s), Change parent, Add parent, or perform a geometry operation.
Scene Browser uses icons to identify the object types, but even with icons for large scenes, it may not be easy to find the object(s) you are looking for. For help in this task Scene Browser provides two options:
Scene Browser Filters: select a filter to show the only object(s) of a specific type, for example, select Lights filter to view all Lights in the scene.
Searching Scene Browser: by clicking the search button the user can search for objects in the Scene Browser based on names or object attributes
The size and location of the Scene Browser can be changed easily, as well as choosing whether to hide it or not. Its appearance can be changed from File -> Preferences, Appearance tab, where Tree Transparency can be changed.
From the top bar of Scene Browser, Attribute Manager can be started. Attribute Manager allows viewing attributes attached to objects in the scene, and updating them.
The following tutorial shows how to use Attribute Manager.