How to automatically highlight every line of text

[DigitalChickster]

Hi all! I'm building reports where we have a lot of consumer comments. They are listed at the end of the report. I want to highlight every other comments to make it easier to read. I have been doing this line by line... adding a paragraph style to each line... one with the text highlighted and one without. But my newest report has over 1000 comments... and this is tedius. How can I make this process automated... can I? I think I've seen this can be done, but I am apparently not using the correct search words, because I am not finding how to do it online. Thank you! 

(attached is a rough example of what I mean... but in real comments, some are many lines long, not just one)

[jmlevy]

You could use a table with alternate fills:

https://helpx.adobe.com/indesign/using/table-strokes-fills.html#:~:text=Alternate%20strokes%20and%20...

If you don't use a table, make 2 different paragraph styles, one with a rule, another without and use the “next style feature”

[Steve Werner]

Here's an example of how alternative row colors could look in a table:

[SJRiegel]

If each comment contains only one paragraph, you could set up your two styles as Next Style to each other. Then select all the text and choose Apply [stylename] then Next Style. This will cycle the styles down through all of the text.