Display, view and operate multi-layers item list in web-browser with supporting of concurrent multi-users

A server supporting remotely access to a folder structure, the server comprising:

• at least one hardware processor, and one non-transitory computer-readable medium comprising program code that, being executed by the at least one hardware processor, causes the server to:
• cause displaying a user interface on a first device and displaying a user interface on a second device across a network,
• wherein each of the user interfaces comprises a hierarchical list to represent in a reduced form the folder structure in a storage, and each of the hierarchical lists is created by the server for a user sessions associated with the each of the first and second devices,
• wherein each of the displayed hierarchical lists is navigated for access to at least a first folder in the folder structure;
• and
• update the folder structure and update the hierarchical list in the user interface displayed on the first device to reflect the updated folder structure in response to a first user via the hierarchical list displayed on the first device making a change to the first folder,
• wherein the hierarchical list in the user interface displayed on the second device is also updated in response to a second user via the hierarchical list displayed on the second device access to the changed first folder in the folder structure.

A program product tangibly stored in a non-transitory computer-readable medium in a server and comprising program instructions which, being executed by the server, causes the server facilitating remotely access to a folder structure, wherein the program instructions comprise:

• program instructions for causing to display a user interface on a first device and display a user interface on a second device across a network,
• wherein each of the user interfaces comprises a hierarchical list to represent in a reduced form the folder structure in a storage, each of the hierarchical lists is created by the server for a user sessions associated with the each of the first and second devices,
• wherein each of the displayed hierarchical lists is navigated for access to at least a first folder in the folder structure;
• and
• program instructions for updating the folder structure and updating the hierarchical list in the user interface displayed on the first device to reflect the updated folder structure in response to a first user via the hierarchical list displayed on the first device making a change to the first folder, and
• program instructions for updating the hierarchical list in the user interface displayed on the second device in response to a second user via the hierarchical list displayed on the second device access to the changed first folder in the folder structure.