What do you mean by "Now on GUI dashboard where it gives the ARM information?"
ARM is an automatic, process that changes an AP's power settings, channels to get the besst radio environment for your APs.
What do you want to see? the changes that the ARM process is doing to your APs?
you can show the ARM history for a specific AP by using the following command from the CLI:
show ap arm history {ap-name <ap-name>}|{bssid <bssid>}|{ip-addr <ip-addr>}