just to let you all know I called Airbnb and this is the answer:
once you added bank account, you don't need to do anything anymore.
Airbnb will deposit $0.01 and it will take them about 7 days to verfy that the money been going into the bank. Once its done the system wil automaticlly change it to active
while it's getting clrfy any new reservation $ will go to your bank as it did beofe
once you see that it changed from verification pending to Active you can change the defulte setting of the bank.
If you happend to change the defulte before it's been verfy, no worry, the money will still going to the old bank account.
If you in usa and still need to reach Airbnb here is the number 855-424-7262
All the best. PLL