Whenever I discuss dexter, I insist that having it written as a pure R package makes it easy to write additional packages on top of it to allow for extra functionality. The first such package, dextergui is now available on CRAN thanks to Jesse Koops and Eva de Schipper. It makes working with dexter easy peasy even for the most hurried practitioner. I just show you two screenshots, and I am sure you will find out the rest of it yourselves.
