Not exactly, using the trick, the custom brush, when click in their button on the editor, this function is executed:
event bool Build()
{
local WorldInfo WI;
local edificio E;
WI = class'Engine'.static.GetCurrentWorldInfo();
foreach WI.AllActors(class'Edificio', E)
{
if (E.location == vect(0,0,0))
{
etc.
in that way the function finds an actor, “Edificio”, but only if it is located at 0,0,0. I want to replace this with the selected actor in editor, so I can place "Edificio"s in any location in the map and the custom brush function works only in the selected one.