Hi
@Javier BernalFrom the licensing aspect to your question - What you are trying to do is actually not possible - the way the system works is that there is one account which can have multiple licenses under it - there isn't a way to create sub accounts under an existing account.
From inside Trimble Connect, what you are trying to do would also not be possible since changing the account ownership to a different account would require that the license for the project would have to be changed - since you cannot use a license coming from one account while saying that the project is owned by another. The way it technically works is the project is owned by the account from which it gets its license.