Does anyone know how to hook up a remote cycle start button?

Yes,

   You will need an Unused input on your: Parallel port, Modbus device or external motion board what ever your using.....

for arguments sake lets say your using Parallel port 1 and so you goto your ports and pins, and under inputs, scroll down until you see
OEM trigger #1.  Put the Port1, and your Pin# that you have open.

Then goto:  Config>System HotKeys Setup, under the External Buttons - OEM codes, under Trigger #1, put:  1000
then hit the OK button.  OEM code 1000 is the button code for cycle start. so, when ever OEM Trigger1 goes hot, your cycle start button will "Press".

scott