https://legacy.curseforge.com/wow/addons/tidy-plates-threat-plates?comment=7699

Is it possible to use a template for custom nameplates? For example, a "caster" template might have all styles, colors, highlights, etc. and then apply that "caster" template to many individual mob nameplates. When the template changes, it changes for all the mobs.

https://legacy.curseforge.com/wow/addons/tidy-plates-threat-plates?comment=7739

Allow us to define templates and easily copy them, adding only a new unit/unitid. Have any changes made to that template propagate all custom nameplates inheriting from that template. For example, I could define a "focus mob" template, and then add a list of unit names/ids to it that it will apply to. In the future, if I change any of the settings of the template, those will automatically be reflected on the nameplates of the mobs in the list.