Treeview  

Treeview is a tool for displaying hierarchical structures, and knows about astronomical file formats amongst others. Operation is very intutive.

One panel shows the hierarchy as a tree of expandable nodes,

the other (this one) shows help or description of a selected node.

You can drag the separator between them or resize the whole window.

Tree panel controls:

Detail panel controls:

Use the other tabs in this help window to find more information about Treeview. The Demo button () is also useful for exploring its capabilities.