title: UE4 set Actor pointer to null without destroying it in the world
body: <p>I'm trying to figure out if it is possible to reset the pointer of an Actor and simultaneously not make it disappear from the world.<br>
  Example:<br>
   1. <code>auto Item = GetWorld()-&gt;SpawnActor&lt;...&gt;(...);</code><br>
   2. ...<br>
   3. <code>Item = nullptr;</code>- resetting just the pointer<br>
   4. Actor is still in the world<br>
  I believe that duplicating this actor would work, but it mustn't be the best solution IMO.</p>