1. A method for providing an indicator to indicate a detection of an action associated with an element of an executable block diagram model, the method comprising: displaying an executable block diagram model via a user interface, the displayed executable block diagram model including at least one selectable element, the at least one selectable element being a block, line, parameter, signal label or annotation; detecting a first selection action selecting the at least one selectable element; detecting an editing action associated with the at least one selectable element, the editing action related to a value of the at least one selectable element; displaying on the displayed executable block diagram model an indicator associated with the at least one selectable element of the executable block diagram model, the indicator representing an existence of a difference between the at least one selectable element as edited and a saved version of the at least one selectable element; detecting a second selection action selecting a portion of the executable block diagram model outside the at least one selectable element, the second selection action detected while the indicator continues to be displayed; and removing the indicator from the displayed executable block diagram model upon saving or applying the value of the at least one selectable element of the executable block diagram model.