Install file manager in N1ED editor
N1ED is a WYSIWYG editor which can be installed as a plugin over CKEditor 4 or TinyMCE. It can also work as a snippet when you start from scratch and have no existing content builder yet. N1ED also has its own plugins/modules/extensions to popular CMSs like Joomla, Drupal, Magento, Prestashop, etc.
N1ED is a multi-plugin that will power up your CKEditor or TinyMCE with file manager, image editor, features to edit responsible pages (Bootstrap 3, 4 and 5 are supported) and their grid (table structure), to make reusable block templates, insert a lot of widgets.
So Flmngr file manager is an essential part of N1ED and is already included there. The only you need to do is to install the backend of Flmngr after you installed N1ED add-on into CKEditor or TinyMCE.
The Wizard will help you