Thanks for your answers
Denti said:
"It is still our SOP for the least used method of doing non precision approaches (using V/S instead of VNAV or IAN) to dial the altitude window down to MDA and 500' above MDA turn it back up to the missed approach altitude"
It's not better to select the missed approach altitude when you are reaching the MDA and the FMA change to ALT ACQ? (I think that happens 200' feet above the selected altitude, although you are flying a 1200 f/m descent - dive and drive...)
At 500' above MDA you probably are flying still in VS mode. I think that if you change the Alt window at this moment and you put a higher altitude like a missed approach altitude, you won't have an altitude restriction and you will keep descending as FCS Explorer said (you will need to level off using VS mode)
Thanks
Alejandro