Conect up to five PC to only one accountquestion

Hi, my name is Racmar.
Recently we has upgrade to premium our airdroid account (strmoficina@gmail.com)
We did it because we need to conect up to 5 pc to only one acount in order to send sms trough only one telephon number.
I have been trying but I can not do it myself.
Could any one help me?
Thank you.

Hi, my name is Racmar.
Recently we has upgrade to premium our airdroid account (strmoficina@gmail.com)
We did it because we need to conect up to 5 pc to only one acount in order to send sms trough only one telephon number.
I have been trying but I can not do it myself.
Could any one help me?
Thank you.

Hi Racmar, kindly note that Premium account supports adding 6 Android devices to the account, instead of computers. Sorry for the misunderstanding