Hello, There. I went through your requirement carefully. Frankly I am skillful in the flow chart. I have experienced to make it using d3/react-dnd/twello and so on. As I am a javascript full stack developer, I have developed similar flow chart using React, Angular, stencil, meteor. just not so fancy since these are all test. I am very interested and want to work on yoru project. no worries, I will delivery the same result with your mockup. thanks Andrey