Thank you so much.
You have solved my biggest problem,because i'm managing 10 appliances using SMP portal and due to this feature i can easily create multiple common objects/hosts using CLI scripting from the Cloud like single script or multiple scripts for different tasks not only for single appliance but as many as available in the SMP plan.
Created CLI Script for adding host using below command
add host name MyHost ipv4-address 192.168.x.x
add host name MyHost1 ipv4-address 192.168.x.x
Created CLI Script for adding host to group using below command
set group MyGroup add member MyHost
set group MyGroup add member MyHost1
I'm writing this response to help others for the same concern.