Use case or problem
In large canvases navigating around can be a bit of an issue or following arrows across the entire canvas. Having a function to jump to a node and back to the location you jumped from would make this easier when navigating.
A node that can link to another location on the canvas. This can be visually represented on the canvas and relationships (arrows) pointed to it. Then a function which a shortcut can be bound to it that jumps back to the last node that you used to jump.