The Save My Screen feature in StP, although buggy but it saves a lot of extra work in re-doing the components and the code.
DnD does not have a similar feature. You can copy (duplicate) the screen in the same project and it comes without code blocks. Quite surprisingly, the first edition of DnD has the Saved Screen feature and then taken out.
Most needed feature in my opinion
Global functions. Why do I have to repeat the function in every screen and had to find names for each duplicate function.
When I use a Data Viewer List / Grid, it adds an extra screen to my project. Totally confusing.