Stan,
Sorry for the delay...
The caption track I'm using is "Open Captions", I'm not so far along that I cannot create another style/format of caption/subtitle track.
Your link to the CS5.5 Encore Help file doesn't work (or didn't for me in Edge), which makes your subsequent comments confusing. Especially since NONE of the available Caption tracks in PProCC2019 export to the .scc format.
Anyway, I hope that this answer is sufficient to allow you to "...take it from there."!
Thanks in advance!
- Jim 8^}