How to set up a shortcut to highlight text in a doc?

I am teaching someone to use google docs and was asked a brilliant question which I am also curious about.

If an editor has lots of words or sentences to highlight in a google doc they must 1) choose the text they want to, 2) go find the highlight color pencil icon, 3) identify the color they want, 3) apply it. Having to do this multiples dozen times get old and is a lot of mouse clicks/trackpad taps.

Q: Is there a shortcut to highlight text in a google doc?
What are tips and shortcuts available?

I searched their Keyboard Shortcuts list and didn’t find one for highlight. This website says you can load a helper program to help do that.

Another option is to:

  1. highlight the first set of text the way you want it to look,
  2. select some of that highlighted text and copy the style, ⌥-⌘-C
  3. now highlight any other text you want to highlight and paste the style, ⌥-⌘-V

I think this works in MS Word and possibly Pages, too.