Canceling all entries in the consignment

The thing I want is, canceling all previous entries of mine, before registering new items to the consignment.

@JellyBitz I need your advice. When I use xPacketTool to see what are the opcodes, and I realized it changes with every registry.

I mean it’s not like this:
The first item in the list is always–> 01 00 00 00
The second item in the list is always–> 02 00 00 00

Instead, it generates codes for each item uniquely. What kind of an approach would help?