1. In a computer system, including a processor and memory, that uses a first tree structure for organizing data, each node of the first tree structure being definable by a path, a method for distinguishing items in the first tree structure from logically grouped items in the first tree structure, the method comprising: identifying a first grouping of items in the first tree structure, the first grouping comprising one or more leaf components; generating a selection representation for each leaf component in the first grouping, wherein the selection representation organizes the first grouping of items as a sub-set of the first tree structure; filtering the first tree structure with the selection representation of each leaf component to identify a remainder of items in the first tree structure; and displaying the selection representation and the remainder of items in a display of the computer system.