Can field have two columns in element index list?

[piotrpog]

Is that possible? let's take for example field that would allow user define date range, between two dates. Would it be possible for field to have two columns in element index list, one with start date and one with end date?

[brandonkelly]

Not easily, but the plugin could register additional table columns using the craft\services\ElementSources::EVENT_DEFINE_SOURCE_TABLE_ATTRIBUTES event, which is triggered when defining the available table columns for a source.