Document URL: 
https://docs.openshift.com/container-platform/4.7/installing/installing_aws/installing-aws-customizations.html#installation-configuration-parameters_installing-aws-customizations

Section Number and Name: 
Installation configuration parameters
Table 2. Optional parameters
One or more keys. For example:


sshKey:
  <key1>
  <key2>
  <key3>

Describe the issue: 
Multiple ssh-keys is not officially supported (but possible).

Suggestions for improvement: 
Until engineering team supports multiple ssh-keys properly, remove mentioning of multiple ssh-keys from user facing doc.

Additional information: 
Multiple ssh-keys is introduced via:
https://github.com/openshift/openshift-docs/pull/22718#discussion_r479990090

Also mentioned in support doc:
https://access.redhat.com/solutions/5638721 (marked as SOLUTION UNVERIFIED)

A Jira ticket would be required if there is a need to support multiple ssh-keys at install time.

This should be applicable to all platforms.