Bibtex style files

In section 6.5.3, second paragraph, last sentence from The Jolly Writer:

Native BIBTEX styles can also be used, modulo installation of the bibtex
> program on your computer.
>

I want to use this feature. What I tried so far:

The BibTeX style file is here
<https://mirror.las.iastate.edu/tex-archive/macros/latex209/contrib/acs/acs.bst>
.

I copied that to ${TexMacs user directory}/progs/bibtex/acs.bst

(and also tried with this file name: ${TexMacs user
directory}/progs/bibtex/acs).

My `${TeXMacs user directory}/progs/my-init-texmacs.scm` reads:

```
(tm-define (bib-standard-styles)
        (append (former) '("acs")))
```
Tried changing BibTeX conversion option from Edit->Preferences
to bibtex, biblatex, biber.

None of the methods worked.

Please let me know if it is possible or not possible.

Thank you,
Bimal Gaudel