I can't use modern static objects

[TheGreatCthulhu]

Is there a white_night folder in redist\static_objects folder (or amnesia the dark descent\static_objects for Steam ed)?

EDIT: If there is, the "white_night" category should appear along with the others in the Static Objects panel. You're not trying to find them using File > Open (cause that won't work, it's for maps only)?

Another way to use static objects which aren't listed in the Static Objects panel is to place any static object on the map, then select that object, and click on [...] button next to the Mesh text box (at the bottom). Then you can browse to any dae file. This is how you can add custom-story specific static objects, if they are located somewhere inside the folder of the custom story. You might want to consider copying some of the dae files from White Night to your custom story folder, and then doing it this way, because if you simply add an object located in white_night, other people will also have to install White Night in order to play your custom story (or full conversion).