One of the things people have clamored for is a proper QSD editor. In 2014, "Matt" released QuestStudio, a QSD editor for iroseph. The source was also available. It had some minor problems, but I repaired the source and built the program in VS2019 and updated the .net framework to 4.7.2. Both the source and binary builds are available on github.

https://github.com/Adosorken/queststudio