My OCD is killing me!!!!
How do I get this to center-justify so that the ]Ø1.56] sits over the center of the lower line?
The depth arrow and subsequent 8.5mm was added by modifying the text dimension in the text properties. The text is already set to center-justify - but it only seems to apply to the 1.56/39.6 and does not include the arrow and depth dimension.