This is where you create custom quantity lists to link to your product tree which is for Simplified Quoting.
You can create as many lists as you need..
All this is managed from Admin > Factory Capabilities > Quantity Lists:
You will see the new quantity list in the top section. Now click on the dropdown option to select the list:
Use the quantity and kinds fields to start building the list:
Enter the first qty line and click the '+' button to add:
The quantity details will show:
Continue adding until you have added all required options:
Then 'Save':
You can now go into a tree node and link the new quantity list: