Hi Cristian, I'll give some explanation here, hopefully it will be what you are looking for.

Regarding LPs/Capital accounts:
A capital account in Hub can have multiple Contacts. Each Contact is an individual Person. Whenever someone logs into Decile Pro, the investor portal, with an email matching one of the contacts on the capital account, they'll be able to see that capital account in Pro.

So, for example, if you wanted to allow an investor, and e.g. their spouse, accountant, advisor to access their account on pro, you would create a Person in Hub, and then go to the capital account -> contacts -> add that person to the contacts for that capital account. (Then, that person would just need to sign up for decile pro using the email you have on the Person in Hub).

People/Email in general
However, a single Person in Hub can only have 1 email address associated with them.