Keyboard shortcut to cycle through text styles

There are keyboard shortcuts for most text adjustments, size, wieght, line height & letter spacing. But if you’re working with set text styles any adjustment breaks the style. Often I find myself needing to bump text styles up or down in size, having to select te correct text styles is unnecessarily complex. 

I tried creating a custom plugin for cycling up and down in the predefined text styles, it works, but requires setting API access and manually adding keyboard shortcuts via system settings. 

So my suggestion is to add a native shortcut to cycle up and down in the predefined text styles with Control + Option + ⌘ Command + > and Control + Option + ⌘ Command + <