Does anybody know any key-pressing tricks for the Grundig YB-400?

I'd especially be interested in:

- full long-wave coverage

- extended VHF FM reception, like NOAA weather radio

I asked this a couple of years ago, but maybe there are recent developments.

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Registered Monitor BR549
The Shack on the Bayou www.ghg.net/cliffwatts/

Drake R8, Grundig YB-400, Heathkit GR-64 (retired)
Realistic Pro-2006, Bearcat BC-245XLT