Reusing last start and end points in Shortest path

[alesarrett]

Save and make resusable the last (at last) introduced start and end points so that they can be reused for subsequent analyses to compare results using different parameters.

[josephholler]

With the algorithm as is, you can copy the point definition text and paste into new iterations of the algorithm, e.g. the point is defined as something like this: "453732.395554,149387.302460 [EPSG:3684]"

You can also open the "History" panel (go to Processing -> History, or Ctrl + Alt + H) and open the previous run of the algorithm with the same settings you had used.

That said, it might be nice to have a layer-to-layer version of this algorithm.