Variable fontsize in a textblock

I’m really excited about the release of this new version of Rhino. As a Rhino-user since version 1, I have to say that I have never been disappointed whenever a new version has been released.
Since ages I’m drawing building permit plans for various architects. Formerly I used AutoCAD, since Rhino 5 I tried to do this in Rhino (In my opinion this is nearly 100% satifying with the improvements in layout etc.). But there is one things which is a little bit annoying to me. Maybe I have overseen/missed something: Is it possible to have variable fontsize or variable colour in a single textblock ? (By the way this possible in AutoCAD since I had to use it)