selective hiding in Access Point

[#1]

Can we hide the dashboards in AP based on user credentials or we can just avoid them to access dashboards? Please share the ideas about how to configure APs with high security. And how to assign (access permissions) Document & Named CALs.

[#2]

Found a solution in the following link

http://community.qlik.com/thread/29163?tstart=0

Can anyone explain how to add CALs (Document and Named)