Add custom button to Action in Detail view

[rsp]

Answered in your another post:

New button triggering workflow

I tried to implement the functionality on my machine. I could get it successfully working. The following are the code changes: public\legacy\custom\Extension\application\Ext\Language\en_us.lang.php <?php $app_strings['LBL_ASSIGN_STATUS_CONFIRMATION']='Are you sure to change the status of this lead?'; extensions\defaultExt\config\modules\Leads\recordview\actions\assign_lead.php <?php namespace Symfony\Component\DependencyInjection\Loader\Configurator; use Symfony\Component\DependencyInjec…