For EAP 7.0.1.CP.CR1 started domain (default configuration) open web console and navigate either
Runtime > Hosts > master
or Runtime > Server Groups > main-server-group
In column Server click the Add button - this should open the Create New Server Configuration dialog but the dialog is not opened.
In case of RBAC enabled the dialog in rare cases opens but with wrong host selected (see attachment)
This is regression compared to EAP 7.0.0.GA.