New Post: Add Subject Alternate Names to Cert Request

Dear experts,

is it possible in the Submit-Request Function via the Parameter -Attribute to add anyhow Subject Alternate Names? If yes how is the Syntax?

I know Vadims blog http://en-us.sysadmins.lv/Lists/Posts/Post.aspx?ID=11 but we have the auto-approval feature turned on at the CA, so this approach would not work.

Thank you in advance for your hints.
Regards Andreas