You can buy this project and download/modify it how often you want.
<#-- @ftlvariable name="existingValues" type="com.infobip.kafkistry.service.ExistingValues" --> <#list existingValues.owners as owner> ${owner} #list> <#list existingValues.users as user> ${user} #list> <#list existingValues.producers as producer> ${producer} #list> <#list existingValues.topics as topicName> ${topicName} #list> <#list existingValues.consumerGroups as consumerGroup> ${consumerGroup} #list>