3. Graph Editor
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## 3. Graph Editor

This subwindow is divided into three tabs: Property, Element, Hierarchy.

### Property

This tab displays the properties of nodes and edges as a table. (Properties will be covered in Section 2, “Graph properties”.) This tab can also be acessed by clicking the tool, then clicking on a graph element (node or edge).

It is composed of two parts: click on the bottom one to choose which property to display in the top one. Check `selected only` to restrict the table to the nodes selected in the node link diagram (i.e. the drawing).

Right-click (Ctrl-click on Mac) on a table row to display this pop-up menu about the corresponding element:

- `Add to/Remove from selection`: change the selection state of the element,

- `Select`: the current element replaces the whole selection,

- `Delete`: permanently remove the element from the current graph,

- `Properties`: show the element properties in the “Element” tab (which we now explain).

### Element

Click this button in the toolbar , then click an element (node or edge). The element tab opens:

Like before, double-click a cell (in the value column) to update it.

### Hierarchy

This tab shows the hierarchy, i.e. the inclusions between the subgraphs and groups of the current graph. Hierarchies will be explained in Section 3, “Hierarchy”. A hierarchy is often the result of a clustering algorithm.

Right-click an element to remove, clone or rename it.

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