In the OctoNus Stereo Viewer program you can open any number of data files in the same view. Hereinafter we name these data view items layers.

Layers panel is located at the right program panel in the section 'View control':

 

 

To add new data as a layer to view:

  1. Select the view by mouse:
  2. press CTRL + SHIFT + 'O' or select 'File > Open to layer' menu item, then find and open new data:

You can also drag previously opened data and drop it to view with already dropped data files to add it as new view layer.