yes – I think the easiest way is to write a custom element. You could use the “columns element” and select a post from each category however this may result in a tedious workaround.
You need to modify coronaincludesadminregister-admin-dynamic-options.php & coronaincludeshelper-templates.php if you’d like to add custom templates. Maybe some changes in coronaframeworkphpclass-htmlhelper.php are required too.
Another solution would be to create a custom page template based on page.php and includes/loop-page.php