1. A computer-readable storage medium having stored thereon computer instructions that, when executed by a computer, cause the computer to: detect a selection of a node in a hierarchical data structure; determine whether the node is a significant node; responsive to determining that the node is a significant node: transform the significant node into a format suitable for retrieving additional information related to the significant node, wherein the format suitable for retrieving the additional information includes a context and at least one item of data from the hierarchical data structure; and obtain the additional information.