All elements in the model should have some mechanism to manage LOD.

Cells are scaled dynamically when they are declared as Annotation Cells.

Parametric Cells can have different elements displayed based the view rotation.

Display Rules can also resymbolise Cells based on user defined criteria.

What would be great is if Cells can have an LOD setting that dynamically select user defined versions of the Cell based on the defined LOD.

Eg a bolt would only have a basic centre line and crosshair info for low LOD, basic shaft and head geomtry for med LOD and the threads etc for high LOD.