This is my shiny application: ui.R # values to show, or not show, these will be the ‘choices’ and ‘selected’ values # for the checkboxGroupInput() all_rows <- 1:25 names(all_rows) <- paste("Row", all_rows) # data control: the checkboxes will control the data values plotted controls <- list(h3("Multicolumn checkboxGroupInput"), tags$div(align = ‘left’, class = ‘multicol’, checkboxGroupInput(inputId =… Read More Specify the padding between rows in a checkboxGroupInput