title: multiple column layout inside a tabPanel
body: <p>I generate a lot of input using <code>renderUI</code>, I would like to have a multicolumn display inside a tabPanel.</p>
  
  <p>Of course the number of input is dynamic :-)</p>
  
  <p>Any idea how do do this ?</p>
  
  <pre><code>   library(shiny)
  ui &lt;- fluidPage(
    titlePanel("Old Faithful Geyser Data"),
    sidebarLayout(
      sidebarPanel(
      ),
      mainPanel(
        tabsetPanel(
          tabPanel("Plot",
  uiOutput("lot_of_input")
          ),
          tabPanel("Summary", verbatimTextOutput("summary"))
        )
      )
    )
  )
  
  server &lt;- function(input, output) {
  
    output$lot_of_input &lt;- renderUI({
  list( 
    numericInput(inputId = "A","A",1),
        numericInput(inputId = "AB","AB",1),numericInput(inputId = "B","C",1),
        numericInput(inputId = "C2","C",1),
        numericInput(inputId = "A3","A",1),
        numericInput(inputId = "AB3","AB",1),
        numericInput(inputId = "B3","C",1),
        numericInput(inputId = "C23","C",1)#, lot of other input
  ) # In my code this list is returned by a function
    })
  
    output$summary &lt;- renderText("coucou")
  }
  
  # Run the application
  shinyApp(ui = ui, server = server)
  </code></pre>
  
  <p><strong>not this :</strong>
  <a href="https://i.stack.imgur.com/C1xSh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/C1xSh.png" alt="not this"></a></p>
  
  <p><strong>but this :</strong>
  <a href="https://i.stack.imgur.com/PV5Sz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PV5Sz.png" alt="but this"></a></p>