Keep Text+ with WriteOn Property centered

My problem is actually quite simple. I have some text which uses the "write on" property to be faded in. By default text+ is centered but if I use the write on property it will still keep the space for all the text.

So in short... I want the text to always be centered no matter how I modify write on.
How can I do this?

Download the Krokodove suite of plug ins and install them. When you right click in the Text window you will see a new modifier called 'Write' this should do what you want. You can also turn on a cursor.