Is It Possible To Change The Size Of An Item Being An Entity Made By Packets?

PHP:

use pocketmine\network\mcpe\protocol\addItemEntityPacket;
use pocketmine\Player;
use entity\Entity;

$id = Entity::$entityCount++;

$pk = new AddItemEntityPacket();

$pk->entityRuntimeId = $id;

$pk->item = item::get(Item::EMERALD, 0, 1);

$pk->position = $pos;

$pk->metadata = [
 Entity::DATA_FLAGS => [Entity::DATA_TYPE_LONG, (1 << Entity::DATA_FLAG_IMMOBILE)]
        ];
            foreach($p->getLevel()->getPlayers() as $pl){
            $pl->dataPacket($pk);
}


I would like to know if there is a way (maybe with Metadata) Change The size of this item that will be suspended in the air and also change or take the speed with which it rotates

I Use The Latest Pocketmine 1.11.0 (1),