Blender equivalent of components in Sketchup I have used sketchup before. I want to know can we make components or similar feature or addon available. In sketchup if we make a object components and make several copies of that object and if edit a single object of that component it will affects to all the components we have made with that main object. for the reference how the component works https://www.youtube.com/watch?v=rKhRDvpn_DU
This sounds like a linked duplicate. Use Alt+D instead of Shift+D when duplicating and I believe that you will have what you are looking for. Editing any individual object will change them all. 

For more info on duplicating see this link:

https://www.blender.org/manual/editors/3dview/object/transform/duplication.html