Playing with the trick of the custom brush that Chosker told me:
there are some way to know the selected actor in editor, or to know if determined actor is selected?
I have found a native function called “isselected()” in actor.uc, but I don’t know how use it.
I can use some variable in the actor so the brush can find it, but it will easiest getting the selected actor.
Also, there are some way to know the camera position and rotation in the editor?