tjmillar:
This is one way to achieve that look:
1. To create the text, use the Text 3D object, set it as desired (getting the correct size will take some experimentation/math), view it in an Elevation, then copy.
2. Paste into the Master Layout, it will come in as Lines and Fills.
3. Select the Fills and change them to "% 50" with a grey pen for the Foreground.
4. In the Master Layout settings, select the Display Master Layout:
Above Layout option.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David