gm! Direct deposits to specific NO aren’t built into the Lido on Ethereum protocol, so I’m afraid the path to having just that is, well, quite convoluted.
The closest approach to get what you’re describing is being worked on as “Lido v3”. Basically that’s a Lido upgrade to allow building dedicated staker-operator vaults + optional liquidity on top of such vaults. You can look up the details here: Lido v3 Whitepaper RFC