Question about the customer portal feature: individual user based content?

Question about the customer portal feature: individual user based content?

Can the new customer portal in Zoho creator allow each user to see data unique to him after logging in? For example, can I make a custom quoting application where the user will only see his own quote? (also this needs to be done automatically - if a quote is created for a specific user, he and only he should be able to see it after logging in. Manual permission adjustment for each user would be way too much work)

Also can it allow him to update his contact information (Zoho CRM integration)?

Thanks.