I obtained a two-week enterprise account with lastpass and associated that with email@example.com.
I created an ordinary account and associated it with firstname.lastname@example.org
I then tried to figure out lang06 could have its own personal information visible only to that account and have information in the enterprise account accessible to it (at least read only).
Their documentation and support is contradictory and confusing on the implications of "linking" accounts. The documentation clearly says the admin of the enterprise account has read/write/delete access to the personal account, but their support person flatly contradicts that. I think there's some confusion around terminology and what is meant by an "enterprise" account vs a "personal" account.
I tried logging in as enterprise account (hcmc) and using the "link personal account" to link to lang06, but that allows only one such linking and is obviously intended to allow an employee to connect their personal lastpass account with their employee last pass account, rather than linking various accounts to one umbrella account.
I then tried creating a shared folder in the enterprise account. I managed to do that and to allow user lang06 to have access to that folder. I could find no indication in the user interface when logged in as lang06 to indicate I had access to a shared folder in hcmc. I was unable to put anything into the shared folder to share, so maybe that's why I saw nothing when logged in as lang06 - though I should have seen a folder even if it had no contents. I'm sure eventually I would have figured that out, but even if I did, I'd then be in the situation where I'd have my real personal account, some bogus enterprise account somehow connected to my real personal account through their "link account" feature and somehow with access to the shared folder in the hcmc account - maybe, and if everything worked out.
That's just getting too complicated. Instead I think I'll create an ordinary FastPass account associated with email@example.com and then give people that need it the necessary information to connect to it.