How to get aliases to appear on Calendar reminder dropdown?

With recent major problems with Yahoo!, I'm considering switching to outlook.com.  During my evaluation, I was able to successfully add an email address "alias" to my account (The alias is for Evernote) so I was happy about that.  When I went to Calendar though, the dropdown box for the reminder does not show this alias.  The dropdown box only has my hotmail email which is my main account address.  The alias I add was not added.  Now I was able to go back to my account settings and make my "alias" the primary and then my alias showed up in the dropdown box for the Calendar reminder, but that's not what I want to do.  I want my primary to remain as is and set the reminder on some Calendar items to the alias.  So my question is why isn't the alias showing in the dropdown box for the Calendar reminder and how do I get it there?  I will mention this is a very old hotmail account so if this is something just not supported from the hotmail switchover to outlook.com, I can abandon this hotmail account...I don't need to use it.