To remove Security Agents, select a group and then select
the agents. To remove a Messaging Security Agent, select it.
Tip: To select multiple, adjacent Security Agents,
click the first agent in the range, hold down the SHIFT key, and
then click the last agent in the range. To select a range of non-contiguous
agents, click the first agent in the range, hold down the CTRL key,
and then click the agents you want to select.