Remember pan & zoom per NodeTree

I wish node editors would remember the pan & zoom of the canvas on a per-node group basis.

Currently, the pan & zoom information is remembered on a per- editor basis. Which means, for ex, when you select another nodetree (by selecting another object or modifier) and zoom and pan in a way that makes for that node group, same view is applied to the previous nodetree when you get back, forcing you to constantly fiddle with the canvas and reorient yourself. Same goes for sub-groups inside a main nodetree.