The current DFD is not suitable for threat modelling as it does not have trust boundaries. Also, it would be great if the DFD for threat modelling would use common symbols. For example see the DFD here: https://threatmodeler.com/data-flow-diagrams-process-flow-diagrams/

why my save file open empty ? is this because I do not buy the licence?

It is too tricky to define classes using only mouse. If I can generate class with plain text style.

I'd like to design a new diagram starting from an existing one, without changing it. It should be possible to clone or "duplicate" a diagram

Enable 8-digit HTML color codes such as #FFFFFF00 so that elements such as classes and shapes can be transparent. Currently, if more than 6 digits are typed, the app just truncates the value.

I can't create well-formed notes for nodes description because all text in the note fill one single line without lines breaking.
It will be fine to provide any hot keys for this purpose to style text.

I am working on a robustness diagram I would like the text form the use case displayed on the diagram so that if i make changes the documentation is synchronized with it. Hence if i could place a note component and the diagram and link it to the use case so that it shows the documentation. Also if i make changes in the note component the Documentation of the Use Case gets updated as well.

Allowing to change seq to OPT in the selected Combined Fragment

any chance to have starUML on iPad?

When I'm writing sequence diagrams, the editor adds a frame into the view automatically. However, I always end up deleting this frame since it prevents me from performing box selections of the sub-elements.

Dragging in the body of a frame should not cause the frame to start dragging, but instead should initiate a box selection.

If I click on "not navigable" the navigability arrow appears, and vice versa.

When adding events and guards to statecharts using the inline textbox, the event component does not seem to appear in the edit section for the transitions. Also editting in the inline textbox for transitions usually fails ( eg guard not removed). The event-guard-effect interface needs to be simplified and less buggy.

It would be great if there was an extension for Dart as well.

The interface looses its color when a relation is added or it can not add a color to interface when some relation exist.

I use many Diagramms and arrange them on the left handside "Working Diagrams". After closing and re-opening the file, the order of the "Working Diagrams" is set to the order you opened the diagrams, and not the one you had on arranging them manually. I would like to have the order of them persisted (should not be a big deal, shouldn't it?).