When you are creating a new job, select the "Packaging" mode in the "Product Part" step. Then two steps that are relevant for the mode display: "Packaging" and "Article". These steps relate specifically to packaging.
'Optimization' Step in the 'Packaging' or 'Montage' Work Mode
This requires the "Gang & Sheet Optimizer" license.
You must enable the "Single Sheet Optimization" or "Multiple Sheet Optimization" option in the "Product Part" step in order to use this feature.
In packaging printing, there are often cases where different articles with the same hull are to be produced in varying quantities. Sheet Optimization automates these requirements taking into account the plate size, etc.
You can find a detailed description of this in Sheet Optimizations.
The "Optimization" tab displays also for packaging jobs where "Gang Job Packaging" is enabled. In such cases, "Collect Article..." is also available analog to the import of single jobs in gang jobs.