If TTFs don't work that way, then how can it be done in any other application such as MS Office,etc (even this website can do it!).
Rather than graying out the features shouldn't PTC just figure out how to utilize whatever is built into the ttf definition, like every other program in the world seems able to do? If all these other programs can do it, it seems like it should not be that complicated for Creo to do likewise. I don't particularly care if the exact thickness/boldness of text can be controlled, but having the ability to bold it at all is required to help separate heading from body text.
It would be really nice if this is one of the issues that PTC addressed in Creo3