You can customize the available instance types that are listed for your cloud. To do this:
Specify the number of CPUs by selecting a value from the CPU drop-down list box.
Specify the size of the memory by selecting a value from the Memory (GB) drop-down list box.
Specify the amount of disk space by selecting a value from the Disk (GB) drop-down list box.
Note: If the value you want is not on the list of options, you can enter any value as long as it is
a positive whole number by typing it directly in the appropriate text
field(s).