Hi! I'm new to Zotero and I'm not an experienced coder. I'm trying to create a style for use by our team. We support researchers with funding proposals. We want to make an extremely concise reference style according to the following structure, but I can't find how to do certain things:

• Citation style: superscript number only.
• Reference style: footnote.
• Use author surnames only. If there are two authors, First Author Surname & Second Author Surname. If there's only one author, First Author Surname. If there are three or more authors, First Author Surname et al.
• Year in parentheses.
• Full article title without capitalisation, except proper nouns.
• Abbreviation journal name in italics and without separators.
• Volume in bold and page range separated by colon, no issue number, no separator after the citation. If no pages, then article number.

So in full:

1 author: First Author Surname (year). Article title. Abbreviated Journal Name in Italics Volume in Bold:Start Page-End Page

2 authors: First Author Surname & Second Author Surname (year). Article title. Abbreviated Journal Name in Italics Volume in Bold:Start Page-End Page

3+ authors: First Author Surname et al. (year). Article title. Abbreviated Journal Name in Italics Volume in Bold:Start Page-End Page

Example:

1 author page range: Györffy (2020). Research funding: past performance is a stronger predictor of future scientific output than reviewer scores. J Infometr 14:367-381

1 author article number: Györffy (2020). Research funding: past performance is a stronger predictor of future scientific output than reviewer scores. J Infometr 14:101050

2 authors: Györffy & Herman (2020). Research funding: past performance is a stronger predictor of future scientific output than reviewer scores. J Infometr 14:101050

3+ authors: Györffy et al. (2020). Research funding: past performance is a stronger predictor of future scientific output than reviewer scores. J Infometr 14:101050

Thanks in advance for any tips on how to achieve this!