Create a php file that extends \Concrete\Block\ExpressEntryDetail\Controller and put it at application/blocks/express_entry_detail/controller.php
You just need to add a “clean” method name like “action_detail” and copy code from “action_view_express_entity” method of the parent class. Of course, you need to change “view_express_entity” to your method name like “detail”
Create a custom template of express_entry_list block
You can create a custom template in application/blocks/express_entry_list/templates/ directory and copy code from concrete/blocks/express_entry_list/view.php.
you need to change “view_express_entity” to your method name like “detail” in this file also.