File Manager allows you to manage files inside the assets folder.
By default configuration, the assets folder is in the core root folder. If you want to change that, rename assets folder and change the value of j_filemanager_folder inside conf.php file.
To manage files, go to the File Manager. If you have files in the assets folder, you can see them in the list.
Edit
Edit the file Title, Alternative Text and Description. These information are the file default value. You can get other image sizes and file direct link in the edit page.
Upload
To upload a new file you have two options:
1. Go to the File Manager, select your folder from the left side and upload your file(s) from Upload section.
2. Open a page with a file browser. Upload your file from there. For example, go to the Posts/Add Post. open file browser by clicking on browse in Full Picture section. Upload your file(s) from upload section.
Some user levels can not upload file from file browser.
Folders
To create a folder, Click on New Folder in the left side. Enter your folder name and press enter.
To rename or delete a folder, move your cursor on folder name. You should see the arrow.
Click on arrow. Enter new name and press enter to rename. You can also click on Delete Forever to delete the folder.