That often depends on how the admin has setup the policy on the ASA. You may not have complete control over that from the client side.
If you want to start "from scratch" you can try deleting your profiles. On Windows they are located by default in the following hidden folder:
C:\ProgramData\Cisco\Cisco AnyConnect Secure Mobility Client
Delete preferences_global.xml from that folder and the VPN profile (file name varies, if one exists) from the profile folder. Then restart the AnyConnect client UI (end process from Task manager or else logoff and then logon to your computer) to cause it to re-parse those profiles when launching.
