Dialogs module

Hi
might it be possible to offer a multi line input dialog that shows more than one line automatically if the initialValue has line breaks in it??
(e.g. I want my users to be able to edit some email body text before sending an email, but the text is on multiple lines & when I show it in the globals.DIALOGS.showInputDialog(title, message, initialValue), everything is stuck in one line so is difficult to edit)
I know I could create a special form to display in a globals.DIALOGS.showFormInModalDialog, but doing this is more flexible ...
Maybe another parameter could be added to globals.DIALOGS.showInputDialog(title, message, initialValue), like globals.DIALOGS.showInputDialog(title, message, initialValue, showMultiLine) ??
Thanks

Rafi