True, it just cannot display the missing images.
Until someone fix the [Category] inside the full item list and match it with the image pack. But there are more than 8000 items...
Backup / Restore is possible. But not on first priority.
The function would require a lot of work but might not save you much time.
Right now it is already very easy to spawn any items with just a few click.
[DEL],[INS], Disconnect button will be included in the next build.
Auto Refresh might not be a good idea. I don't know how often you can safely peek the switch memory.
Peeking it too often might stress the switch and could crash the game.
That is also why I added the "Please wait..." message when you use the Spawn all/Clear all buttons.
Give some time for the switch to catch up.
thank you