Multiple administrators can connect to a Security Management Server at the same time. Each administrator has their own username and works in a session that is independent of other administrators. This allows for collaboration and simultaneous management tasks by different administrators.

Explanation
The fwaccel stat command displays the status of SecureXL, and its enabled templates and features. The other commands are either incorrect or incomplete. References: [SecureXL Commands]

The command to add users to or from existing roles is add rba user <User Name> roles <List>. This command allows you to assign one or more roles to a user in the Gaia database. Roles are collections of permissions that define what actions a user can perform on the system. You can use predefined roles or create your own custom roles. To remove a role from a user, you can use the command delete rba user <User Name> roles <List>.

In order for changes made to policy to be enforced by a Security Gateway, an administrator must perform the action of installing policy. Installing policy is the process of transferring the policy package from the Security Management Server to the Security Gateway. Publishing changes is the process of saving changes to the database and making them available to other administrators. Saving changes is the process of saving changes to a session without publishing them2. Reference: Check Point R81 Security Management Guide