2 Questions about HDM:

1. "Easy to backup (only need HDM Cold seed)" does this mean the Server key and the Hot key are derived from the cold key? (as if it wasn't, I would assume you'd also need the xpub from the server key and the xprv from the hot key to generate the addresses and sign for 2 of them.)

2. Will the user be able to scan / input their own xprv/BIP39 phrases as their key(s)? (In case I want to generate my own entropy) How would that process work?