# Getting Started

## Tree Table

The Tree Table functionality allows to display a multilevel structure of an object as a graphical tree in a list. The Tree Table can be added to different lists in Agile e6.

For the graphical display, two appearance values, Tree Renderer and Tree Structure, have been predefined in the Visualization Lookup Values mask.

- Tree Renderer
  Displays the values of the column as a tree.
- Tree Structure
  Evaluates the values of the column as hierarchy levels.

In this case, field V_ASE_HIE_002.ASE_ID has been defined to show the tree structure (column Appearance > Tree Renderer) and field V_ASE_HIE_002.STRLEVEL has been defined as the source for the hierarchy level (column Appearance > Tree Structure).

To be able to display the Tree Table in the list, the first entry in the multilevel structure has to be a root entry. Tree Tables that have more entries as fields in the list are extended over the first page. The Tree Table structure is only displayed on the following pages when the first entry of each page is a root entry as well. If it is not a root entry, the multilevel structure is displayed like a flat list.

If the first entry in the multilevel structure is not a root entry, and thus the Tree Table cannot be displayed, the following message is displayed:
Graphical structure view is deactivated.