LearnDash LMS Notifications Addon 1.6.2

Feature: Add "Exclude pre-ordered course" option on Enroll into a course trigger.
Tweak: Better object select2 fields (course, lesson, etc) search results to support pagination.
Fix: Undefined array key error on Essay question has been put into graded status trigger.
Fix: Any object option in object field (course, lesson, etc) not saving.
Fix: Fatal error when using Assignment has been uploaded trigger and Assignment has been uploaded condition.
Fix: A scheduled lesson is available to user email not sending.

Feature: new action hooks 'learndash_notifications_email_sent' and 'learndash_notifications_email_failed'.
Fix: triggering objects settings in notification model don't work correctly filtering events that triggers set up notifications.
Fix: user can't select specific quiz associated with a lesson because quiz was only direct child to topic. Now it can be direct child of course, lesson, or topic.

* Added - Multi triggers/conditions support
* Added - 'learndash_notifications_subscription_page_slug' filter to modify subscriptions page slug
* Fix - Disable course fields when using quiz trigger
* Fix - Send single email instead of multiple for "User hasn't logged in for X days" trigger when multiple courses are involved
* Fix - Reschedule drip lesson when user enroll date changes
* Fix - "User hasn't logged in for X days" trigger correctly sends to users now
* Fix - Prevent "A scheduled lesson is available to user" notifications sending from wrong course
* Fix - Display specified course lessons in notifications page listing column
* Fix - User receives quiz failed notification when quiz not failed
* Fix - Group leaders not receiving emails for groups they are leaders of
* Fix - Allow group URL in notifications shortcodes