Transform Gizmo
The transform gizmo automatically appears when selecting one or more entities. It allows you to visually translate, rotate and scale entities. Repeatedly clicking the graphical representation of an entity allows you to switch between the translation, rotation and scaling gizmos.
Translating
You can drag an axis to translate the entity about that axis. You can additionaly drag a plane to translate the entity in that plane. You can drag the origin to translate the entity in the plane of the camera.
Rotating
You can drag the red axis handle to rotate about the x-axis, the green axis handle to rotate about the y-axis, or the blue axis handle to rotate about the z-axis.
Scaling
You can drag an axis to change the scale of the graphics component, if the entity has one. Dragging the origin will change the uniform scale of the transform component.
Snapping
Hold the SHIFT key to snap to increments when translating, rotating or scaling using the gizmo. Note that the rotation gizmo will snap to 1 degree increments by default when the SHIFT key is not pressed.
Duplicating
Hold the CTRL key to duplicate the selected entities when translating. The duplicated entities will then be translated by the gizmo.