I'm using insertUI and removeUI.I don't know how to achieve the function like the picture.Especially the selected removeUI.
I would like you to refer to our shiny-examples present @ https://github.com/rstudio/shiny-examples . One of the example apps there named 111-insert-ui does similar stuff.
Please let us know if that doesn't solve your problem yet.
Thanks for reaching out to shiny team.
Thanks for your answer.I had look through it @http://shiny.rstudio-staging.com/articles/dynamic-ui.html#addingremoving-ui-with-insertui-and-removeui.
However,I want to know how to insert and remove a few common shiny input objects.I think it's another example just like this@https://gallery.shinyapps.io/insertUI/.I don't know how to get this code.