Maintaning multipule E-mail addresses to a user in SU01

Hi

I have a requirement to add multipule E-mail addresses to a user. In the SU01 transaction, in the "E-mail" when clicking on the "other E-mail addresses", a "maintain Internet E-mail address" screen is opened. There is a column named "standard number" which determines which E-mail address will be active.

I am intrested of changing this radio button that not only one E-mail address will be active but other E-mails that are maintained will be active too.

Is this possible?

Thanks

Hila David