Hi Francisco,
Great question!
You can of course sell different types of ticket for the same event and you can also ‘pool’ their stock by using our global stock functionality (if you are selling tickets via WooCommerce or Easy Digital Downloads, at least).
It sounds like perhaps you need something beyond that, though, and need tools to physically organize seating arrangements – is that correct? If so, I’m afraid nothing like that is currently available via our own plugins.