Developer Documentation General Getting started Making extension package Modules Tests Translation Coding rules Backend API Dependency injection Metadata ORM Select Builder API actions Services Hooks ACL Misc Template (PDF) custom helpers Custom functions for formula Custom scheduled jobs Duplicate checking Database indexes App params Jobs Email sending Calculated fields Custom config parameters Frontend View Custom views (for records and fields) Fields Custom field type Customizing existing fields Controller & routing Model Collection Templates HTML & CSS Ajax requests Misc Custom buttons & dropdown actions for detail/edit/list views Modal dialogs Confirmation dialogs Custom panels on record view Including custom CSS file Custom dashlets Dynamic forms with dynamic handler Link-multiple field with primary record View setup handlers Save error handlers Campaigns Custom unsubscribe page