Smart Import merges a JSON file into your bills. Existing bills are updated (matched by vendor name); new bills are added. Nothing gets deleted.

Step-by-step:

1. Send a screenshot of any bill to Jack in chat.
2. Click Export here in the toolbar to download your current bills.
3. Send both files (screenie + your export) to Jack in the chat.
4. Jack sends back a merged JSON file -- save it to your USB.
5. Come back here and click Choose File below.
6. Pick Jack's JSON file, review the preview that pops up.
7. Click Confirm Merge to apply.
8. Click Summerise in the toolbar to print or verify.