Is it possible to pin certain graph nodes on fixed locations?

For example, I want to pin the “#Math” node at the center of the graph and “#Physics” on its left. So that every time I open the graph, the nodes will always have a relatively fixed structure.


There are actually a good number of requests for this feature, some of them not merged into the link below. It is not currently possible, so it definitely is worth following the link and adding your vote.


Thank you!