How to control LOD level?

How to control LOD level? Can I turn it off completely?

You can disable the option for Auto-Computer LOD distances in the Static Mesh editor settings. Then you can set the screen sizes so that the LODs only work in the way you want them to. I’m not sure if I remember there being a setting in the project settings that disables LODs completely, but there might be since there is a check box for just about everything. I would check under the rendering section in the project settings if this was the case, i don’t have the editor opened in front of me at the moment though.

Either way, back to the LOD screen size. If you want the mesh to be on the highest LOD all the time set the lower LODs to a screen size so that they never render, and vice versa for the lower LODs if you prefer one of those to be the one that is only shown.