construct properti panel signal given icon us subclass want layout constructor differ except param titl titl properti panel param icon imag icon us prop panel signal titl icon titl lookup icon icon add field translat local label text field add field translat local label namespac namespac selector add modifi panel add visibl panel add separ add field translat local label gener gener scroll add field translat local label special special scroll add separ action add model element action add context action add context signal action remov element action remov context action remov context signal scroll pane oper scroll scroll pane uml mutabl link list uml signal context list model action add context action remov context add field translat local label context oper scroll action add model element action add recept action add recept signal action remov element action remov recept action remov recept signal scroll pane recept scroll scroll pane uml mutabl link list uml signal recept list model action add recept action remov recept add field translat local label recept recept scroll add action action navig namespac add action action signal add action action stereotyp add action delet action 