Usability simulation of non complete models
When you have a model with components without behavior, a error message is shown (see screenshot). I think it would be better to add “emtpy” behavior (e.g. code specification), that the simulation starts. Otherwise the user create an empty behavior himself and deletes it after the simulation…
(from redmine: issue id 1382, created on 2013-05-10, closed on 2017-11-24)