Launch Amazon EC2 instances dynamically

Hi!
I have automated Launch Amazon EC2 instance. I configured all the properties for the Launch instance step. However, now many more instances have been added and I wish to launch all the instances with a particular set of properties. Please suggest how I can ease this process.

Hi!
Since you are launching Amazon EC2 instances based on certain properties, I recommend you to additionally use the Get Instance Properties as the first step in the workflow to fetch the properties for the desired EC2 instances on this AWS cloud account; rather than fetching them manually from EC2 web portal.