Applying Badge to previously completed build

Pretty generic question, but I’m trying to add a badge using this plugin to an already completed build (once a job completes, it adds a badge to a previous run). I’m struggling to figure out if this is possible.

If anyone is aware of a doc showing how this is done, or can point me in the right direction, that would be much appreciated, as I haven’t been able to find anything (aside from a question on this forum: Is there a feature in Jenkins for giving tags to past build runs or labeling them - #3 by halkeye). this seems to suggest it’s possible