Stop, Start and Delete buttons shouldn't be at Containers - Profiles page.
There are 3 views at Containers page. Profiles, Location and Containers.
You can select a container at Location and Containers view and then click Start or other buttons. it's ok.
You can click those buttons either at Profiles view but there isn't any option to select any container there. As selected container is assumed the one selected at Location or Containers page view.
"Set Location" follows the right behavior.