August 19, 2011, 04:24:26 pm
Hi Alickn, sorry, I didn't notice the post you're referring to, so it must have slipped through the net. In any case, the thumbnail generation process has changed a little to avoid accidents, since we use CTRL for a bunch of other operations, and in the past it proved too easy to mess up thumbnails
Anyway, the way to update the thumbnails of user-imported/object library models is to select the object, for example using CTRL + rectangular selection. Then place the object and the camera in the desired positions followed by CTRL + Left-click the thumbnail.
For those of you with the Special FX plugin/Lumion Ultimate, this procedure also allows you to save the particle effect settings, so you're free to customize these objects to your liking.