Hey Mark,
I have the same problem and adjusting the baseline doesn’t effect where the text size scales from, I set the baseline to -100 and the increased the size slider and still the text scales up from the bottom of the text.
I need it to go from the top as I’m making a Motion templet with 2 line of text but don’t wont the gap between the top and bottom line to change when to font sized is changed in FCP. so the top line scael perfectly but need to get the bottom line to scale to point size from the top.
Cheers