Content Browser, How to Actor make it?

I am building game map in world outliner.
The game map actors that have been created in the world outliner like the unity of Prefab, I want to put in a content browser, but it does not know the way.
How to Actor make it?

Right Click on the actor in the world outliner and select “Find in Content Browser”. Then move your mouse to the object highlighted in the Content Browser and Right Click, move to “Asset Actions” and select “Create Blueprint Using This”. It will ask for the folder you want to put the Blueprint in and then create it.

The Blueprint is a similar concept in UE4 to Prefabs in Unity.

Edit: this only works for some types of objects already existing somewhere in the Content Browser tree. Someone else hopefully has a more correct answer.

Thank you!!