Hello Roger, I have looked in Messages/Labels and it isn't there. I have DataCAD 20 LT. Maybe that's the reason. This is the only machine that I have installed it on.
Have to ask, in you Font Dialog box, is TTF box checked?
The comparision chart shows 20LT supports TTF
https://www.datacad.com/products/dc_compare.html
Datacad should look at your windows font folder for the TTF