Is it possible to create a SHORT CUT key for a Workspace using In Design CS 5.5 ?
Have you tried Keyboard Shortcuts > Window Menu > Workspace: Load 1st User Workspace (or 2nd or 3rd, etc.)?
Edit Menu > Keyboard Shortcuts > Product Area: Window Menu > Workspace Load 1st, 2nd, 3rd, etc. Create a new set and assign a shortcut
Retrieving data ...