Display and reuse MIFARE keys without modifying the firmware?

[Digital-Octet]

Hi, I’m using Bruce 1.16.1 on a LilyGO T-Embed CC1101 with a PN532 reader over I2C.

For a badge I own, is there a way, using a JavaScript script or an existing feature, to display which keys successfully authenticated each sector (Key A and Key B), whether from the built-in list or /BruceRFID/keys.conf?

Can those successfully used keys also be configured on a compatible replacement badge, so both badges use the same keys for each sector? Does Bruce support this separately from “Write data”?

I’m looking for a solution without modifying or recompiling the firmware. Has anyone found a way?

Thanks!