# environment option
Environments management page / Environment settings / Options
Uncheck the box for 3D overlays in a scene to be displayed at all times.
Users can see all overlays of the scene.
The overlays appear bigger if they are closer to the user.
Check the box for 3D overlays to be displayed only when the user is close to them when navigating in the scene.
Input the “Forward proximity preference” and the “Backward proximity preference” to define the range of images when the 3D overlays are displayed.
For example defining a 50 / 50 preference means a user will see the 3D overlays on a range of 100 consecutive images of the scene, centered on the 3D overlay position, 50 apart.