Shoutbox

Let her disable roaming option of Messenger, Tools>Options>General>Use the same display picture and personal message whereever I sign in. Now, if it still cannot be used, try setting a personal message in Personalized Status window. Can it successfully be set?

For the commands question; there is a dedicated command for Personalized Status window, /persostat. Use it when you need it. Only Away status, not others, can trigger Personalized Status window and only when it is set from Messenger's own menus.