public class Manager : MonoBehaviour
{
    public List<TestSO> m_sos = new List<TestSO>();

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKey(KeyCode.Space))
        {
            var obj = (TestSO)ScriptableObject.CreateInstance("TestSO");
            m_sos.Add(obj);
        }
    }
}
public class TestSO : ScriptableObject
{

    public float[] a1 = new float[1024];
}