The Bottom bar shows your current focus and holds some commonly used actions.

You can learn more about focus and how to navigate the Modeler scene hierarchy here.

Scene

The left side of the bottom bar shows your current focus in the Scene.

Orientation

Set the orientation of the gizmo.

From left to right:

• Local space
• Parent space
• Global space

More information about Gizmo orientation options is available under Placement modes.

Actions

The right side of the Bottom bar holds a number of commonly used actions.

• Create a new layer.
• Duplicate selected objects.
• Flip selected objects.
• Group selected objects.
• Ungroup selected objects.
• Merge selected objects.
• Increase the resolution of the current layer or selected objects.
• Decrease the resolution of the current layer or selected objects.
• Sample the resolution of another layer.
• Toggle Symmetry for the current layer or selected objects.
• Toggle Repetition for the current layer or selected objects.

More information on these actions is available here.