Thank you for contacting us. One of the core features of mSecure Premium is "Cross-Account Sharing" that gives you the ability to share only the records you want to share with other mSecure users. The one thing to keep in ming here is that all accounts that share the data have to have Premium subscriptions. This feature isn't supported in the Essentials plan.
If you can give me more details about your context, I can help further in explaining how things would work. For example, are you thinking of sharing data with a spouse?
Yes exactly with my spouse. I don't want to share everything, just our joint account information, etc.
Do both you and your spouse have mSecure accounts already, and if so, are they both Premium accounts? If so, you should have no problems sharing only the information you want to between those two accounts. You can follow the guide here to learn how to start sharing information using shared vaults: Sharing Center
Does the new version allow individual records to be shared?