I have started to use Amazon EC2 service and the question I am trying to solve:
In the list of instances I have a lot of columns, most of them are the same, and the worst thing that the meaning of the most of them I do not know.
I would like to hide/remove some of them, but up till now I have not found a way of doing this.
P.S also if some one will be able to explain me the meaning of the columns, it will be really nice, but this is not the point of the question: - instance - AMI ID - Root Device - Virtualization
If my question was not clear enough, here is the picture: 
