We were using Solspace's Related Entries before switching to Pixel & Tonic's Playa after an upgrade to EE2. Related Entries had an option to designate a 'primary entry' of the related entries. We used code, like below, to select a single record out of the related items for 'showcasing':
{exp:related_entries:entries main_only="yes"}
<div class="primary">
<div class="must-read"></div>
<h3 class="title"><a href="{if series_title_link !=""}{series_title_link}{if:else}{comment_url_title_auto_path}{/if}" title="{title}">{title}</a></h3>
{!-- Updated: 5 May 2012, Stylistic Change to Read More --}
<p>{exp:word_limit total="30"}{summary}{/exp:word_limit}</p><p class="readmore"><a href="{series_title_link}" title="Read More">Read Now »</a></p></div>
</div>
<hr />
{/exp:related_entries:entries}
Is there any method to do this in Playa? or would I need to create a second Playa field, where just a single related item is added?