* Front-End:
 # create template using this contents: {P8}
* Admin Console:
 # go to {nav Configuration > Website > Themes} section
 # press `Rescan Themes` button
* Front-End:
 # open created template in web browser by going to http://www.website.tld/path/to/template.html url
 # confirm, that detailed information about top level menu entries is displayed
 # remember available key names for each displayed menu item
* PhpStorm:
 # create `/modules/custom/units/sections/helpers/e_menu_helper.php` file
 # in that file create `EMenuHelper` class, that would extend `MenuHelper` class
 # override class constructor and before calling parent class constructor add following entries to `$this->itemParams` array:
  * key: `extra1`; value: `array('Filename')`
  * key: `extra2`; value: `array('Status', null)`
  * key: `extra3`; value: `array('CreatedOn', 'Y-m-d')`
  * key: `extra4`; value: `array('CreatedOn')`
 # open `/modules/custom/units/sections/sections_config.php` file
 # add `array('pseudo' => 'MenuHelper', 'class' => 'EMenuHelper', 'file' => 'helpers/e_menu_helper.php'),` line to the array in `$config['RegisterClasses']` key
* Admin Console:
 # go to {nav Tools > System Tools} section
 # click on `Reset` button in the `Config Files` sub-section
* Front-End:
 # reload page
 # confirm, that following additional keys are now present in data displayed for each menu item: `extra1`, `extra2`, `extra3`, `extra4`
 # confirm, that value in `extra1` keys represent value of `Filename` field as-is (no formatter applied)
 # confirm, that value in `extra2` keys represent value of `Status` field with formatter applied
 # confirm, that value in `extra3` keys represent value of `CreatedOn` field with formatter applied (custom date format)
 # confirm, that value in `extra4` keys represent value of `CreatedOn` field as-is (no formatter applied)