Offline players, LAN hosts and CM's may move a task group to the first designated waypoint by clicking Options->Arena Setup->Environment->Task Group Jump on the clipboard menu. For information on setting the waypoints, please see Player Controlled Task Groups.
The Task Group Jump dialog lists the task group number and the country icon, along with the task group Commander. If a player takes control of a task group in offline mode, the Commander will be "SERVER". LAN hosts and CM's will see a player name if a player actually has command. Nothing is listed in the column if the task group is uncommanded.
Any task group can be jumped to the first waypoint, whether it is commanded or not. Also, no matter where the task group lies in the waypoint path, jumping always moves the task group to the first waypoint.