Depending on the incremental node movement mode (see the Expert tab),
the layout may need to shift all nodes to optimize the space usage, but the shifting does not
change the relative order of the nodes and links, so that the diagram
after an incremental layout looks very similar to the previous diagram. Incremental Mode
If the incremental mode is enabled,
the layout respects the current coordinates of nodes and links, and it
tries to create a layout with similar positions.