A better arrangement is the Ayrton shunt or universal shunt, invented by William E . Ayrton, which does not require a make-before-break switch.
2.
A push-to-make, push-to-break switch would therefore be a latching switch-each time you actuate it, whichever state the switch is left in will persist until the switch is actuated again.
3.
The action plan includes switching ON / OFF the automatic load break switches / RMUs / Sectionalizer . The action plan can be verified in study mode provided by the functionality . The switching management can be manual / automatic based on the configuration.