I'm using TFS 2017 update 1 on premises and now I have to upgrade to Azure DevOps Server 2019 on premises. In TFS 2017 I used a custom xml process model and I programmed "layout tag" to realize workitem web interface with many horizontal tab in this way:
I just done the upgrade to Azure DevOps Server and I discovered that fields in the new workitem web interface are automatically vertically rendered, furthermore I didn't find all custom relations but only parent-child and related relations.
I guess it is possibile to program the new web layout form of DevOps Server 2019 in order to obtain the horizontal tabs like TFS 2017. What are xml tags to use in order to obtain horizontal tabs?