How to add mulitple emails for one user for alert configuration in sap pi

Hi All,

I have done alert configuration by giving user ids in Fixed Receipients.

But Every Time when I need to add new email ID , Iam creating one user and adding i Fixed Receipients.

Instead of this how to add multiple email ids

I have seen in sap forums that to create a Distribution list in SO23 and use the DL in Fixed receipient.

But It is  not allowing DL .

Please help me out.

Thanks,

Lalitha