I'm looking for fast way to add new objects to editor's list. I have about 40 models and adding them to my mod is tiring. I always have to create new object and select model. Is there something which let me create .esp file with all these objects added? Something, that will create automatically objects with nif files names.

Even better. Open the folder the meshes are in and then open the CS. Then you can drag the meshes into the CS list (pick Statics, Activators, Containers, etc.). And it'll create the entries automatically, using the file names as IDs. But those are easy to change, if desired.