How do I get lines to show in Base between rows of entries

I have made a simple report in Base for my database. It shows four fields (columns) in each row. I have four pages of about 25 rows per page in this report. How can I get lines to show up in between rows to help keep track of which row I am looking at?
I have previously used microsoft access and when the database prints on paper one row is white, then gray, then white again, making it very easy to read along a row.

Hello,

There are items on the toolbar for applying either a horizontal or vertical line. You can select and draw under or over the detail fields in that section. You can also apply alternating color to lines with a bit of effort.

See this post → Base: alternating row color. (has sample & links to documentation).

Another report sample with some lines in this post → Libre Data - multi-level report

And some other methods to highlight items → How to reuse an accumulated value in a Report?