sales user raise a sales order to mrp user wiht product and variants  i.e product name Mobile and variants/components are color:red, Ram:2GB, screen: 15'inches...then mrp user will receive those information about product and start the production order...here is my question is ..., before product is going to manufacturing order done state , mrp user has to add some new variants/components to that product...like mobile model, series,battery capacity... these kind of information has to add mrp user to that product....then finally product is should be store in warehouse like this...  Mobile name,color,Ram,screen,model,series,battery capacity...

So,please let me know how mrp user will  add variants/components to that product , before the product is going to manufacturing order done state? and

 Is there any option to import mrp user wants to add more variants/components to the product before going to manufacturing order done state?