Here is a little known feature with in CodeBook that could completely change the structure of how you organise your project. Nested rooms
The nested room function can be accessed by right clicking on the project explorer and selecting “Modify Room Nesting”
This allows CodeBook to nest rooms with in each other, the benefit of such is there required and designed areas are calculated as a total space rather than separate (although the latter is still possible)
As this feature is used there is scope to also include required and designed equipment lists in this feature.