Manipulating the graph: Layouts
At the bottom right of the workspace there are controls allowing to "Zoom in", "Zoom out", and "Locate", i.e. center the screen on the current selection.
Using a layout on the graph brings clarity. To refresh the current layout, right-click on the background, or click on the "More" menu at the top of the workspace, and choose "Refresh layout" in the context menu. To apply another layout, choose "Layout settings".
By default the layout is run automatically on the whole graph in some conditions, such as when an expand is performed. It is possible to switch to an "Incremental expand" mode in the Preferences (located in the workspace menu).
This is the default layout, enabled in "fast mode" option. You may turn this option OFF for better looking but slower results.
The hierarchical layout organize nodes in different layers by aligning nodes of each layer vertically or horizontally. It produces a tree-like structure if there is a single root node (the node at the top of the tree):
You may choose a root node. You may choose the orientation, for instance "Top to bottom" places the root node at the top.
Radial layouts position nodes around the currently selected node (used as center of the layout) based on their graph-theoretical distance (shortest path in the graph). This is useful for revealing layers in data and for drawing the rest of the graph in its relation to the pre-defined focus node.
You must choose a root node.