This is not a 737 . . .
You need 1500 Hrs on type with an ATP to be upgraded to Capt from F/O having 500 hrs PIC on A320
how you say ?
This is logged in a seperate log sheet / book when you fly with a TRE/TRI AFTER doing a suitability check in the can .
once youve done that and have fincished Capt upgrade . . . . the Hot seat is yours !