newbie's new first question, is there any dummy actor type in ue4?

I just want to know that if there is some kind of dummy/null actor in ue4?

in any other engine, there will be a dummy object type, which only have the position property inside the 3d world.

So I’m wondering if there is same kind of actor with ue4?

If the answer is yes, then how can I add one to the editor? Because I didn’t find any information about this.

Scene Component is the closest thing to what you want. Create an actor blueprint then Add Component > Utility > Scene. Or you can use an Arrow Component as well, which shows the direction of the blueprint.