Under R77.30 there was an EA isomorphic that supported advanced installs (including the clish config) for open servers. The current isomorphic only supports advanced installs with limited appliances - the option to use configuration depends on the chosen GAiA image.
Can we have advanced isomorphic installs mainlined for R80.10? It would also be nice to support post-install scripts, so we can do things like customise fwkern.conf, advanced SNMP, etc etc.
Going even further off topic, how about an option to deploy via a mechanism like Red Hat's kickstart? Boot of a minimal ISO, provide some basic settings like IP address and a network location for the rest of the GAiA OS and relevant config files - including post-install scripts. Not required in the cloud, but useful for large numbers of traditional gateways.