Lifetime session and Page Design (doubt from novice)

I started exploring phpRAD and I have 2 questions to ask:
a) How to set the Lifetime session so as to obtain the automatic logout after a given idle time.
b) I have not found indications on the operating logic that regulates the page design. If you drag a component or widget on the page, which position will take? How can I change its properties? I created a test page that allows login, but there are elements that seem to not be present in page design. Where do I find detailed information on page design?
Thank you in advance

@SaS is your question about PHPRad Classic 2.3.7 or Radsystems Studio?