Minimal modification to a style
I just wanted to use the AMA style citation, but I get the numbers (of course I can delete them, but this is the nth time I have to do the same), so I was wondering, which could be the best approach to do this :)
Use this guide to edit the style:
https://www.zotero.org/support/dev/citation_styles/style_editing_step-by-step
If "numbers" refer to issue numbers, you'd remove
<text variable="issue" prefix="(" suffix=")"/>
If "numbers" refer to the citation number, you'd remove
<text variable="citation-number" suffix=". "/>
from the citation layout and presumably change the citation style as well.