Storage assistants is a tool that displays additional graphic and text information in the Network tree, and also enables searching and filtering by various criteria.
When an assistant is enabled, its filter appears in the toolbar, and every node is checked against the criteria and marked with the assistant's icon that indicates its status.
Hovering the mouse cursor over an icon reveals a hint with additional information.
When the Filter is enabled, it hides all assets that don't meet the condition.
This is how the Storage may look when several assistants have been added: