Mesh renderer properties


In one of my projects I noticed that the mesh renderer has properties different than default ones. and many properties are missing , I want specifically Lightmap static:
I’ve attached screenshots of the mesh renderer properties
here is my current project properties
here is how it should look by default
any idea how can I get back the default properties?

Thanks in advance.

I’m not sure why you see different views for Mesh Renderer (different Unity versions maybe?) but in the version I’m using (v5.5.1) the settings for static lightmaps are in the Lighting window (in the Window menu). The object tab shows lighting properties for the currently selected object.