big noob here, 2 simple questions.

I can learn how to work with modx as a cms, i just ask 2questions at first to get started in right direction
- Is there an option that serious visitors have their own profile and could be edited by their own?
- Is there any chance to have this option that anybody upload his CV or fill some form and then its membership to the site be approved?
if yes, please point me to the right direction so.

Thank you in advance for your help

Start investigating with the PPP snippet I think.