The (Load ISO) button is missing on the Skytap Environment Details page, and there doesn't appear to be a way to load or mount an ISO to a Power VM.
Loading or mounting an ISO to a Power VM using the (Load ISO) button is not currently supported in Skytap.
To use ISOs with IBM i VMs in Skytap, IBM recommends using a NIS server and mounting your ISO images over the network. See Importing IBM i workloads into Skytap using NIS for more information.
To use ISOs with AIX VMs in Skytap, IBM recommends using a NIM server and mounting your ISO images over the network. See Creating an AIX VM in Skytap from a mksysb image for more information.