Slightly modify this Shiny Tabset example from RStudio to make the tabs rearrangeable with sortableR. Thanks to @RubaXa for Sortable. It really is special.
Try it out. It is as simple as this.
# devtools::install_github("timelyportfolio/sortableR")
library(shiny)
runGist("2dbe45f77b65e28acab9")