To share any file ( or folder), locate the item and find sharing option on the context menu.

Once you click "Share with Fileflex" you are asked to provide details for the share 

Provide the share details and click Done and file(s) or folder(s) is shared with other users. 

Note: On windows 11 , the context menu for all applications is not shown directly on the right click.  To see application commands, you must click "Show more options" on the default windows context menu. 

To know more about Share permission and other settings, click here to read: https://help.fileflex.com/feh/en/working-in-the-my-content-tab/how-to-share-files