I have a custom field holding an array of post numbers. I would like to display the post titles for all the posts. something like: 

the {{item.post_list.cf_tag_candidates}} displays all the posts numbers correctly

{% set candidates = item.post_list.cf_tag_candidates %}

{% for candidat in candidates %}
      [shortcode value=candidat]
{% endfor %}

Where the shortcode simply returns the post title.

UPDATED - found solution using {% set candidates = item.post_list.cf_tag_candidates|split(',') %}