Is this plugin able to detect and translate text from Yanfly's External Link plugin, which creates an external web link from the main menu?
https://www.yanfly.moe/wiki/External_Links_(YEP)

It'll be able to translate any 3rd party plugin, but you'll need to know a bit of Javascript so you can know which function is drawing text inside that plugin, then wrap that inside Hendrix_Localization(text).