New structure of the "Quantities" panel in the "Quantities of the BIM model" tab

The "Quantities" panel has been improved. The following elements are now included in its structure:

• A main branch has been added which contains all the elements and also indicates the position of the IFC model in the component tree.
• Items' quantity detail lines can now be expanded and collapsed.
• The quantity of each item is now calculated.
• The tags of an item's detail lines can now be displayed.
• The partial and accumulated subtotal lines defined according to the procedure described in the new feature "Subtotal line management from the set of measurement rules" have been added.