To see a 3D toolbar you must have a PDF file with a supported 3D object embedded in it. The toolbar appears when you activate the 3D animation.
The default toolbar displays ten tools; you can have more by right-clicking an embedded 3D object and selecting the Expand 3D Tools command.
When you extend the 3D Tools toolbar, you have access to more tools:
1 2 (3) 4 5 6
Views: choose a stored view from the drop-down list.
Store view: name and store the current view for later re-use using this toolbar or a shortcut menu.
Play / Pause: This tool exists in the basic toolbar. Its topic shows Play; here it is showing Pause.
Orthographic/Perspective Projection: click this tool to switch between a 2D and a 3D view.
Render Mode: select a 3D screen rendering type.
Extra Lights: add lighting to your 3D section.
To see the purpose of the other tools, see Working with Embedded 3D Objects.