How To Oto VCV Style Glottal Stop/Vocal Fry

[JamesOvO]

I want to add Glottal stop (or Vocal Fry) to my voicebank and I don't know how to oto it

Any help?

 

[Kiyoteru]

You can copy+paste the vowel strings, and record them again with a glottal stop between each vowel. You'd OTO them exactly the same as any other VCV sample, like OTOing "a か" for example.