To sign in, use your existing MySonicWall account. To create a free MySonicWall account click "Register".
Allowing access for specific security groups over SSL VPN
what do you want to accomplish? You can import (it's just a reference) groups from the AD and give either VPN access or create specific firewall rules for them. You need to have AD (LDAP) authentication enabled.
If you have specific questions, I and others are here to help, but in general the answer to your question is yes.
Please follow the KB listed below which explianes the detailed process of how to integrate LDAP with the Sonicwall and also on how to use a specific group/ specific user to be able to access to SSLVPN services and not for all the users.
Technical Support Advisor, Premier Services