"change"-node should save size per node

[dcamarenaAZO]

Hi folks,

the "function"-node keeps the width of the editor. If you open one "function"-node, drag the vertical splitter to another place, close the "function"-node, open this or another "function"-node, the size is still the same.

The "change"-node always opens forgetting the last size. It would be hilarious if the "change"-node could do the same than the "function"-node and keep the size of the editor.