Hello Pierre,
I am new to Groff, and using the MOM macros. I have used LaTeX for previous work, but looking for alternative I have found Groff/MOM, which I have been playing with latetly to see if it would suit my needs. Some of those needs are small caps and old style numbers. These days most fonts come in OTF. However Groff/MOM needs that small caps be in a deditated OTF file (well at least for the install-font.sh script that I have been using to convert OTF fronts to groff-usaeable fonts.). I have read your thread where you have been playing with Linux Libertine font to test accessing various font options. I was wondering if you have been successful in either creating a small caps and OSF as independent otf files using fontforge, or if you have found an easy way to access those features from OTF files. Regards, Yves