kblubis
Hi
This is not a custom link it is redirected to the Selected category menu.
Open file "/html/mod_articles_latest/slider.php" in template "ja_artsy".
Find
<a class="heading-link" href="<?php echo JRoute::_("index.php?Itemid={$modMenu}"); ?>" title="<?php echo $modCat ;?>">
Add your URL i href="">
If you have different module using same layout you can make new override file of slider php to select there
