Is it possible to use True Type fonts from different directory than Windows\Fonts?
It is possible to set the MicroStation configuration variable:
MS_TTFPATH
This variable will then specify the path to the directory which contains the True Type fonts.
https://communities.bentley.com/products/microstation/w/microstation__wiki/8817/fonts-in-microstation
https://communities.bentley.com/products/microstation/w/microstation__wiki/14552/missing-font