NSEntity: Add 'Use' input from Source.

src/gs-entbase/server.src

@@ -56,6 +56,7 @@ server/func_pendulum.qc
 server/func_vehicle.qc
 server/func_vehiclecontrols.qc
 server/light.qc
+server/logic_auto.qc
 server/stubs.qc
 server/infodecal.qc
 server/player_weaponstrip.qc

src/gs-entbase/shared/NSEntity.qc

@@ -589,6 +589,12 @@ NSEntity::Input(entity eAct, string strInput, string strData)
 	case "ClearParent":
 		ClearParent();
 		break;
+	case "Use":
+		eActivator = eAct;
+
+		if (PlayerUse)
+			PlayerUse();
+		break;
 	default:
 		NSTrigger::Input(eAct, strInput, strData);
 	}