Hi @Alexandre, problem is solved. After resolving duplicate fonts, restarting Mac, resolving duplicate fonts (again, first time it failed?!), restarting Mac again and launching Only Office, fonts are listed in apps. 
Hi @Alexandre, problem is solved. After resolving duplicate fonts, restarting Mac, resolving duplicate fonts (again, first time it failed?!), restarting Mac again and launching Only Office, fonts are listed in apps.