Story/Use Case:
A technician quickly flips between multiple graphs to help devise trend/cause.

Ideal Operation:
The user changes from one graph to another (on the same or different host) and it preserves the zoom/filter settings. An option for current or proposed setting would be nice too.

Current Operation:
The graph saves its own zoom/filter settings. This is okay if you go back to an old graph but requires the user to manually zoom in each time a graph changes.