Currently, to switch between workspaces in a linked session with Windchill, the current session has to be erased. The only way around this is to set up a custom launch script that uses an additional license and a separate cache location. That would be fine, but there is not an easy way to do this enterprise-wide.
Please enhance simultaneous linked session functionality, i.e. multiple instances of Pro/E, so that users can easily switch between workspaces without erasing their current session.