When adding a Package Installer, NI Package Builder is currently limited to only configuring the options on the top level, first page of a suited installer (i.e. "NI-IMAQdx", etc.), but not configuration of the second page "Additional items you may want to install:", where it lists "recommended" items. This means one cannot create a fully customized NI Software suited installation (like was possible in the past with the .spec file).
NIPB needs to analyze the installer configuration and expose a list of recommends/suggests for each top-level package or for the whole installer itself, just like Install.exe does.