How do implement a row that has 4 column as its relation?

[Darren_Murphy]

Glide will convert those columns into an array column.
You cannot use an array column as the source for an Inline List.
However, if you really want an Inline List then there is a little trick you can use to transpose that array column into a single column with multiple rows.

Transpose Columns to an Inline List: The Miracle Method

I’m often asked how to take columns of data (say form responses) and display them in an inline list. Here’s one way to do it—the MIRACLE METHOD. [Glide: Transpose Data Columns into an Inline List with the MIRACLE METHOD]