Dear,

Looking at the pictures it might have to do with the fact that you haven't selected a cross section catalog yet. The available diameters and their material properties (for quantity calculations) are stored in these catalogs. By default Allplan should have installed some catalogs already. If not, a reinstall might be necessary (and check all the extras that can be installed in the install menu, at the top where you also fill in your central folder path etc.).

Kind regards,

Nick