I tried. but not that does not really works.
It seem that he ureal team decide that when the make the Detail panel widged, they single out some classes, like actors, and almost every asset (texture, static mesh, materials, etc)
and gave them special sub sear menus menus.
but for some reason they excluded Actor components.
as it stand now they is to was to initialize an actor component pointer form the editor, whether it was a blueprint of the scene.
It seems the only was to do that is but a blue print, of by giving a default.
Thanks anyway.