Gecko Fault/Reset Manager

I built Marris's circuit and would like to add a remote fault LED to
it. Where could I wire this in.

Also I'm wiring up home switches. I plan on using the encoder index
pulse and a micro switch. Both will be inputed to a 74LS00 IC.
Question is, Can I wire direct or do I need a resistor for the encoder
index. Three gates are used, X,Y, and Z. But EMC only needs one input
,... can I tie the three gate's output together?

Frank