I am currently working on a paper written in LaTeX and am trying to obtain abbreviated journal names in the references. Using the built-in tools in Zotero, I can get abbreviations for a few journals, but many still appear with their full names, including journals such as JCP and CMAME.

How can I manually add an abbreviation for a specific journal name in Zotero without modifying each individual item in my library? Is there a central location where all these abbreviations are defined?