I'm planning to move my funds to a multisig setup with Unchained.

How can I store my own funds, plus funds for several family members, in the same multisig wallet, but have the funds segregated so I don't have to keep track of balances?

HD wallets should allow for separate chains of addresses within the wallet, right? But how do I actually do that? Maybe passphrases to segregate the accounts within the wallet?

Would love some advice!