Pulse train pause trigger with sample mode is finite

I am pulsing a stepper motor driver with a pulse train from a USB-6351.  I use C#.  My first process homes with sample mode ContinuousSamples until I reach the limit switchs and trigger a pause.  This works OK.

Now I need to move to specified positions (FiniteSamples) but I still need to monitor the limits very closely.  I have the issue that pulse generation with Finite samples can not use pause triggers.  Is there any way to get around this restriction so that the pulse train pauses immediately if a limit switch is activated.

Out of curiosity why place the "no pause trigger" on pulse genration with finite samples.