Did you select the S2 security option in the eisy when you included/installed the device, otherwise it may install as S0 which is why it didn't ask for a pin.
Each time you add a zwave device the eisy device id will increment by one number, i.e. zy002, zy003, etc.
The SMCO410 will install several nodes, one for smoke, battery level, CO2, etc. When you first add the device the nodes in the eisy may be blank until you press the test button on the detector
eisy config files cannot be edited.