Currently for some reason in the World Editor, I can not zoom in far enough to see the models... When I place on of your models, and ensure my own are same size, they are too small to zoom it to really see. I must me missing something with the settings...

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I am sure it has something to do with the scale of the world, but I don't know how to adjust that. When I open maps you created, obj's are much larger than when I plac an object in the same map..

you can adjust the scale of a mesh in model editor (right click with scale mode)
or adjust the scale in world editor in object properties.
world editor zooming range can't be changed

What about the world itself? There is something seriously wrong with it. If I create a terrain, and add YOUR models, they are microscopic, and I can't zoom close enough to see them, but if a load one of YOUR maps, everything seems normal with the exact same models... It can't be model scale that is the problem..

please attach some sample screenshots and provide sample world folder with detailed information what is the problem