Hi. My Solution For this currently is pretty simplistic, but works quite well in most cases :
During Playmode, I Export a graph to a json-file ( just some dummyfile for temporary saving of graphs ) .
Leave Playmode.
On the Graph – Import that temporary-JSON-File into the graph again.
DOne.
Maybe one could provide a button or a tickmark for the graph, which would allow us while being in playmode to mark those graphsm, which we want this to happen automatically ( like : “persist Changes after Playmode” or something) . I think it probably wouldn’t be too difficult to implement this autosaving and loading ? Would still be quite useful I think ..