Diagnosis
You have reduced the number of walls for the current Cockpit. However,logical views have alreadybeen assigned to the walls being discarded.

System Response
The removal of walls that you planned is corrected insofar as onlythose walls are removed for which no subordinate elements have beendefined.

Procedure
If you wish to remove further walls from the Cockpit, you must firstremove all logical views from these walls.