If you have access to a remote workgroup, then provided that the remote workgroup has one or more planners and given that you have sufficient access to these planners, OfficeTalk will let you view the remote planners from within Planner mode.
To do this, firstly drop down the list of planners. The name of the remote workgroup will appear after all the local planners. Select the remote workgroup. The drop down list will close and OfficeTalk will attempt to open the remote workgroup database. When this is done, drop down the list of planners again. This time, the list of local planners will have disappeared. However the remote workgroup will be shown together with it's planners listed underneath. Selecting one of the planners will display its keys and associated bookings.