CloseLC880.vi (end a session with the LC880)
DisableOutputs.vi (turn off outputs)
EnableOutputs.vi (turn on outputs)
ForceChan.vi (force trigger on a channel)
LockFrontPanel.vi
UnlockFrontPanel.vi
OpenLC880.vi (begin a session with the LC880)
SetTimeBases.vi (set the clock sources used by different groups of channels)

Here are the timing mode settings:
SetClock.vi
SetDelay.vi
SetFixed.vi
SetPassive.vi
SetToggle.vi
SetValidatedDelay.vi

There is an example vi showing how to use the vi's (open a connection, send commands, close the connection).
SetToggle and ForceTrigger.vi