I want to implement it on the shiny platform to remember the shape of the flow chart after I modify it. When I rename a node each time, its shape will not reset, and I can drag it to my favorite shape and click download to save it to the local png format.

I have two problems to solve:

I am currently working on a project in Rshiny using the visNetwork package to create interactive network diagrams. I’ve successfully generated a network diagram, but I’m facing a challenge with preserving the layout after dragging and dropping nodes. I can only save the initial shape.