visibility of related items in middle pane

This has been proposed before, but not discussed:

http://forums.zotero.org/discussion/178/related-tab/

Now, I cannot see if an item on view is linked to a related item, unless I click on the "related" button in the right hand pane. This is cumbersome, especially if I only have a minority of items with related items. It would be much better, if there were some indicator for related items in the middle pane, similar to notes and attachments. This could either be on additional lines below the title.
Or, to make this feature optional, there could even be an extra column that could be toggled like the other columns (author, type call nr. etc.)

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