ZFP - Synchronized image manipulation (pan, zoom, WW/WL)

In ZFP, image manipulation functions (pan, zoom, WW/WL) support only each viewport.

ZFP should have function that enable several images/series adjust at the same time, like Cweb.

<scenario>

When comparison studies are loaded, customer often have to adjust image for each viewport. So, if 2 series are displayed, customer have to do same operation twice. It is painful.

If ZFP can adjust several images/series at the same time, they only need to adjust once.