[TYPO3] BE-users rights

[Livius Agrippa]

Hi,

I try to set the BE-users rights but I have 2 problems (questions).

1. Every user can edit his personal page but also when he tries to
insert an internal link, he can link only with his personal pages. How
can it be set that the users are allowed to insert links to any internal
page?

2. I have created 3 extensions but I want to let the be-users the
possibility to edit only their own created items.
How can I accomplish this?

Many thanks for your time and information,
Livius