Can TALISK_HQ auto-categorize bills from the same supplier

Yes. A vendor rule sets the defaults TALISK_HQ applies every time a bill arrives from that supplier: its currency, expense category, and tax handling. Set it once and you stop fixing the same vendor by hand.

How to set one up.

1. Go to Ledger › Expenses › Vendor Rules and click Add Rule. (A rule is also created automatically the first time you set a currency or category on a vendor's bill.)
2. Choose the vendor and the defaults to apply. You can optionally have it auto-approve the vendor's bills or mark them recurring.
3. Turn on apply to existing to backfill the vendor's current bills too.

From then on, new bills from that vendor arrive already categorised and pre-filled. The backfill option rewrites your active bills for that vendor, but it deliberately skips any that are discarded, cancelled, or already settled, since those are finished.