View > Fonts lets you change the font characteristics for all information displayed on all blocks. If you have applied font characteristics to specific display or label blocks, those font characteristics override the settings in View > Fonts.
You can retain Rich Text Format (RFT) in comment blocks with Edit > Preferences > Rich Text Format.
To specify fonts
1. Choose View > Fonts.
2. Select the font attributes.
3. Click OK, or press ENTER.