Good morning Jana,
Here is a response from an experienced, sighted Duxbury user:
While I have no experience using JAWS, I think I might have found something useful in Duxbury's help files. I found a section on JAWS Scripts that includes several hot keys that will be of use to a JAWS user. In this case, Alt + 9 should speak the current cursor location, giving the page, line, and column. Here is the link to an online version of the in-program article (it must be noted that this documentation is for 12.5 and appears to match what I found in my 12.2): https://www.duxburysystems.com/documentation/dbt12.5/welcome_to_DBT/JAWS_Scripts.htm. Hopefully, this will help the user.
Additionally, here are two more links for Duxbury questions.