Select the girders that are erected during this event.

Item	Description
Girders to be erected	List of all the girders. Girders with black text have not been assigned to an event. Girders with gray text are assigned to a different event and can be moved into this event.
Girders erected during this activity	List of the girders that are erected during this activity.
[>] and [<]	Move girders between the two lists