You can send Bitcoin to more than one addresses at once by using the Icrypex multi-transfer option. All you have to do is create a CSV file, save the file with the addresses in the first column, and the quantities to be sent in the second column, and upload the file to the system. You can also update the quantities as you wish on the screen down below.
Another feature of multi-transfer is that if there is an address that does not exist in the created file, it does not transfer there.
It shows you which address is wrong by indicating the wrong address in the red box. You can only transfer to addresses that you have confirmed as your own address.