Whenever I use any text style plugin to automate the process, the fonts lose various OpenType features. For example, underlined variants of a font lose the underline and everything with disambiguation or monospace numerals gets reverted to its default state.
If there is no way to do this through a plugin, is there at least a way I can select text and press a hotkey to instantly add it as a style? This would still take a while, but otherwise it would take hours to add all of the font styles I need.