No.
One element (in you case your master zone) is not aware of other elements in the project (i.e. other zones).
Except for parent/child elements - i.e. a wall can tell you how many windows it has.
So you will have to manually add the data to your master zone, for it to do the calculations.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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