I am not sure what is meant by 'user types' in your question. Do you have a screen shot to share or better yet a packaged workbook?
As for the dashboard only showing content after a selection is made - you could investigate using a sheet selector with a parameter if the selection of items is static and could be represented in a parameter. By using this method, you could just show selected views after selecting from a parameter. See Sheet Selection on Steroids and/or Sheet Selection on Steroids | VizPainter
Best of luck