Ability to fit text in a text block

If you have a single text line, you can apply text fitting. If you use a text block, you can't do that. When setting up a template that has a block of text that vertically centers, it is unfortunate that you can't also fit each line. Please consider adding the ability to fit text within a text block. Even if it means adding a new tag (e.g. <fit>) or adding new functionality to the <stylerun> tag.