How to use distant lod? I create it into mesh editor, what next?

You don't have to do anything else. Just load the mesh into
the game and draw it. Everything is handled by the engine

Ok. Thnx.

When i use lods, FPS dramatically go down. I generate lod into mesh editor.

is there a way to do the generation process in code?
Like if i have some certain settings that i would like all certain types of objects to have.
Can i somehow do this in create function?

of course,

you can create a new MeshLod in a Mesh
then copy it from the base MeshLod (MeshLod::create(MeshLod &src,..))
set MeshLod::dist2
and simplify it (MeshLod::simplify)

at the end call Mesh::setRender