Confusion about configuring the crypto element on MKR NB 1500

[gusto2]

My other question is, once slot 0 is locked, can I still use slots 1-4 to generate additional internal keys?

That is acutally a good question. I found following post, seems related

Permanently configure your ATECC508A to ECC608A crypto element

Hello Jamesjl, let me clarify this, it's a hard topic so feel free to ask more questions! The crypto element onboard the MKR series comes from the factory in a "clean" state. This element supports different configurations to allow its use in different situations with different outcomes (this clean state allows advanced usage which is out of scope for this use case). However, is mandatory to configure it to be able to use it; so the configuration is flashed onto the crypto element, and it must…