Hey there Dizzy,
Would seem from the first read through that what you desire is not possible with your current setup.
if you try dropping one of the cycle starts, the robot will get out of synch with the machine. Without changing the wiring for the robot IO and also it's programming you are pretty much stuck with the way it is now.
If you get out of synch, things could go wrong real quick, I once had the "boss" hit the reset on a robot and it was then out of synch with the machine... end result was the robot smashing it's way through the door of the LC20 and up against the lower turret.
Not a nice look.
Mind you on the up side, he left the machine alone after that!