Highlight Lyric line via Automation button....... can't get it to to work

[GaryO]

Looked at your Youtube vid on using the Automation button......about the section on Highlighting a lyric line.

Assuming this is suppose to work on PDF documents?

I added the button........i start my normal scroll function, and at the spot i want to start THIS function i try to tap on the Left Third of the screen, but don't see the Highlight line?

[arlo]

Lyrics highlighting doesn't work with PDF documents, only with the built-in Lyrics field.