After upgrading the DR appliance to version 4.0 it is no longer possible to edit created containers. When you click on the "Edit:" tab next to the container it does not take you to the editing dashboard.
This is a known defect.
The workaround is to either use CLI or go to the containers menu and select create and then cancel; at this point you will be able to edit the containers.
The fix will be available on our next web release.