When I click on instance in the group I am unable to edit that instance to add a network tag. I get the following You can’t edit this VM instance because it’s managed by a group. "To edit this VM instance, first remove it from group frontend-ig"
Yeah….same here. It appears that you cannot edit an individual instance within a managed instance group from within the web console. I used the CLI command "gcloud compute instances add-tags frontend-instance-group-p3l6 –tags=allow-ssh-tag" to add the tag to the instance. You may need to specify the zone attribute as well or just answer any zone related confirmations after executing the command in the CLI.