How many Status and dates, are registered for each EAM Work Order?

Wich dates in the EAM Work Order Proccess are registered in the work orders tables?

Is there some standard functionality to store diferent scheduled start date, so we can know how many times the planner is reprogramming the work?

Is there some standard functionality to add a diferent Work ORder Status diferent of the standard status, and to store the date in wich the work order get that specific status?

Thanks on advance.

Yelics