Adding service properties to interface is not intuitive

[Ynn]

+Adding service properties is not intuitive: I did not manage to add service properties to a newly created component at first. I successfully added a new service interface but did not figure how to add properties. I finally remembered that the user must use the right click on the service interface in that purpose.

+Also, the "Edit" button does not work for me (or i do not understand what it is suppose to do). I finally get it : it is made for editing service properties. Here againt, this is not intuitive at all.

+Finally the default value is not shown on when looking for service properties (it would be usefull)

---

The fact is that the gui is not intuitive on that part. Some hints are missing.

I have no real proposal to solve that problem. At least there should be no edit button (editing should be available via a contextual menu or double click).

A solution might be to add three new buttons (add property, remove property, edit property) below the two existing button that should be named "add interface", "remove interface").

[tleveque]

We will wait for experiments on students to find a better way to manage service properties and check that it is not intuitive for them.