Can not see why this expression does not work. The expression is set to Area and it is set to appropriate classification. When i have tried to simply set a simple value like 1m*1m instead of element property it works. But this way it only says can no...

Hi I have created some panels that i need to schedule the length. The object is created by selecting two archicad profiles. one for profile and the second for the plan shape. The idea of scheduling is to read the length of bounding box and rewrite A ...