User profile appearance change

Hi everybody,

Elgg is great thanks for this! Im a newbe in the elgg, forgive me any stupidity if appears then ;-).  There are few things which bother me last time.

 + I'd like to add fixed fields with prepared forms to be filled to the profile. These fields I want to be extended to left and middle column (just like that default one) and what is more I need to have them only for special kind of user types. 

 + How to remove fields below picture of a user "Edit profile icon", "Friends", "Friends of" and replace them with other ones?

 + Is it possible to create a PDF content for a dashboard or a user profile. I havent found any plugin with this feature.

 + How to create a web path to user profile using his username e.g.


Any help will be very appreciated.