Give the name of the layout(s) a C360 pre-built section is in
The “Used In” column on the Pre-Built Sections page of C360 layout builder would be so much better if it told you the layouts it is used in. This is very similar to Report Builder (Used In for dashboards), expect in Report Builder list view it actually tells you the name of the asset.
Even if you try to hover over, you don’t get any more information on this one.

Help :)