Disable option to edit properties for container items that are there through inherited configuration

Currently, container items have a grey-ed border when they come from an inherited hst configuration (thus through ../inheritsfrom property)

However, the container items in it, you can still click, and a popup opens in which you can edit the properties: This should not be allowed either of course

Just making sure that no popup for the properties is shown is I think enough. Perhaps cleaner is to show the popup with properties, only unmodifiable now