Legacy Documentation: Version 4.3.0
EditorGUI.SelectableLabel
static function SelectableLabel(position: Rect, text: string, style: GUIStyle = EditorStyles.label): void;
Parameters

position Rectangle on the screen to use for the label.
text The text to show.
style Optional GUIStyle.
Description

Make a selectable label field. (Useful for showing read-only info that can be copy-pasted.)