The packaging Settings are as follows.

Parcel Packing Method: Parcel Packing Method has dropdown options like you can choose any of them.
1)Pack Item Individually.
2)Pack Item into boxes with weight and dimensions.
If you select the pack item into boxes option then you can see the FedEx standard shipping options as
1.FedEx® Small Box
2.FedEx® Medium Box
3.FedEx® Large Box
4.FedEx® Extra Large Box
5.FedEx® Pak
6.FedEx® Envelope
7.FedEx® 10kg Box
8.FedEx® 25kg Box

Package dimensions or Weight: you can the following options in the dropdown.

1. Pounds & Inches

2. Kilograms & Centimeters