Separate these ad-libs with commas, or join them with hyphens.
One ad-lib follows another with nothing between them. A comma separates them as distinct calls and a hyphen combines them into one; which one fits is a phrasing call, so both edits are preview-only.
Example
[Verse]
(Yeah yeah yeah)[Verse]
(Yeah, yeah, yeah)The fix
In the workbench this finding carries one control, labelled Separate as Yeah, yeah, yeah. The change is contextual, so it is previewed as a diff in your document first and applies only when you confirm it.
Source
The guideline this rule enforces, as cited on every finding it reports:
Ad-libs verified Parenthesize and capitalize ad-libs