Hi, I'm in a need for a specific Vancouver style. 3 first authors visible in the bibliography and then et al.

In-text citation:
[1]
[1,2,3*,4**]

Bibliography:
Campbell, J, & Pedersen O, Spirito P, et al. The varieties of capitalism and hybrid success. Comparative Political Studies 2007; 40(3), 307–332.

Here's a paper using this citation style:
https://journals.lww.com/co-cardiology/Fulltext/2022/01000/Risk_factors_of_sudden_cardiac_death_in.4.aspx

The exact instructions of the journal are following:

"In the text, reference citations should be typed inside square brackets, e.g. [1]. Asterisks should be used to indicate bulleted references, e.g. [1,2,3*,4**]. In the reference list, bulleted references should include the asterisk to the left of the number, with the annotation beneath the reference details (see below).
Please list the first three authors for each reference and then et al, unless there are four authors or fewer, in which case all authors should be listed. Provide full reference details (author(s), title, journal, year,
volume, pages). Capitalise the first letter and all initials of authors’ names, the first letter of the title of the paper, and any proper nouns in the title.
Journal names should be abbreviated as in the Index Medicus. If you are not familiar with the appropriate abbreviation, then the journal name should be given in full."


Journal:
* Author A, Author B, Author C. Title of the paper. Journal Abbreviation 2000; 4:25–27.
With annotation describing importance of reference, if bulleted.

Book:
* Author A, Author B, Author C. Title of the book section. In: Book name. Edition number. Edited by Editor A, Editor B, Editor C (editors). Location of Publisher: Publisher; 2000. pp. 25–27.
With annotation describing importance of reference, if
bulleted."

I just started to use Zotero, and am having hard time to understand anything. But as far as I'm concerned, there is no this kind of style in the repository, and I couldn't edit the default Vancouver style.. I tried to edit the CSL code but any changes I made didn't seem to update in the actual Word document. So please don't hesitate to give me instructions like I was 5 years old :D

Thanks!