When a Custom Code Section is selected under Settings → Customize Site, the left configuration panel displays the message “There are no configuration settings available for this custom code section.” Since the section is edited directly through the HTML/CSS editor, this panel provides no useful information and occupies valuable screen space, partially obscuring the list of sections.

Request: Hide or collapse the left configuration panel when a Custom Code Section is selected, allowing the HTML/CSS editor and section list to use the available screen space more effectively.