...
Open the Weava sidebar in Google Chrome. On a Windows computer, you You can do so via the shortcut (ALT+SHIFT+S) for Windows, (OPT+SHIFT+S) for Mac.
Turn on “highlighter mode” at the bottom right corner.
When it says “ON”, you have now enabled your highlighter.
Alternatively, you can simply use (ALT+S) / (OPT+S) to directly enable the highlighter.
...