Function: Checks lock status for posts displayed on the Posts screen.

Function: Checks lock status on the New/Edit Post screen and refresh the lock.

Function: Checks nonce expiration on the New/Edit Post screen and refresh if needed.

Function: Disable suspension of Heartbeat on the Add/Edit Post screens.

Function: Performs autosave with heartbeat.

Function: Removes single-use URL parameters and create canonical link based on new URL.

Function: Makes a tree structure for the plugin file editor’s file list.

Function: Outputs the formatted file list for the plugin file editor.

Function: Flushes rewrite rules if siteurl, home or page_on_front changed.

Function: Resets global variables based on $_GET and $_POST.