enable SSH on vRPA's and Cluster - Recoverpoint Appliance Version 5.3.1

I am managing 2 clusters and 4 vRPA's accross 2 locations. I seem to be able to connect to 1 cluster and it's 2 vRPA's but the second cluster does not allow an SSH connection. I have been through the normal troubleshooting of accessing the vRPA's via remote console and then attempted to enable SSH via - Setup -> Advanced options -> Security options -> Enable/Disable remote connection -> Answer y to enable remote access. The problem i have is that i do not have the Enable/Disable remote connection option available on my console window. I have tried to see if i could access that option on the cluster IP but the result is the same. There is also a mention of using something called the Boxmgmt logon but i have never set this up and also cannot connect via this option.

The object behind wanting to connect via SSH is so i can run a script on each of the vRPA's before i upgrade from 5.3.1 to 5.3.1.1.

Any help or guidance is highlight appreciated.