Most building projects created within Revit will utilize linked files from other disciplines to show the various components within the building model. When this is done, it is not uncommon for users to desire to see the other disciplines at a different detail level than their own. This may be the MEP engineer wanting to see a Fine detail level in their view, but only see the Coarse level of detail in the Architect’s model. It may also be the Architect desiring to see their model at a Fine detail level, but see the Electrical Engineer’s electrical devices with a Medium detail level to show electrical symbols and not actual electrical element modeling.
Regardless of the reason, it is definitely possible and even easy to have linked Revit models show different detail levels on a view by view basis. This means that each view can be set differently per the needs of the view. Also, each different Revit link can have different detail level settings from the other links within a view.