In the Folder name field enter the folder name that you want to appear on your ownCloud Files page. In the Configuration field enter the full file path of the directory you want to mount. In the Available for field enter the users or groups who have permission to access the mount; by default all users have access.
In addition to these steps, you have to ensure that Local storage is enabled in your ownCloud installation’s config/config.php
file. It should have the following configuration:
'files_external_allow_create_new_local' => 'true',
Source: Local :: ownCloud Documentation
Local :: ownCloud Documentation was last modified: January 31st, 2020 by