To select neighboring nodes along incoming arcs:
The any choice in the palette matches any arc type.
Since composite arcs may contain (elided) non-composite arcs of the specified arc type, the search may pass through these composite arcs to select the matching nodes. The composite arc type choice matches only composite arcs.
Neighboring nodes that are connected to any of the destination nodes by incoming arcs of the specified type become selected.
If you hold down the shift key while choosing the Incoming menu item, the neighboring nodes are added to the previously selected destination nodes (rather than replacing them).