Given the seeming demise of NBT Void, I'd love to see some version of its features incorporated into NBT Editor. As you said in the Shulker Archives server, /get lostitem handles cursor updates, so expanding its reach to other items encountered (potentially up to items seen in other players inventories?) with configurable limits would both enhance /get lostitem and fill the void of NBT Void.

I think the configurable options should be

1. Item Limit (e.g 1,000 items)
2. Range

The range could be

• 0 | No items saved
• 1 | Items held in cursor will be saved
• 2 | Items you've held in cursor, hand, or inventory will be saved (Default)
• 3 | Items you've seen in chests or seen in other players hands/inventories will be saved.

Potentially there could also be an inventory tab for Lost Items similar to the ClientChest/EnderChest tabs, though that may just introduce more clutter there.