How can I delete extra alarms.

through control studio I used the Alarm button up top, added a few and configured them. I clicked add and realized for my system I didn't need it, so I clicked cancel. It still added it but its not configured. I can configure it, but in Explorer when I go through Control Strats, Area, Module, and in the right pane is listed all of the blocks and components used in the module. Including Alarms. when I right click those alarms, the configured ones or not I cannot select Delete, it is greyed out.  I am logged in and can edit the system. What am I missing? do I delete them through another application?