I have been using Radmin for a couple years and have many licenses.
I would like to see the dual monitor support allow the choice of one monitor only to be sent from the radmin server. It needs to be controled and secured from the server side. This allows for someone with dual monitors to do a presentation or training for a viewer while keeping the control panels hidden on the second monitor. This is a simple yet valuable function for people who wish to use Radmin as a tool for training, teaching and presentation.
Don't neglect this option which will extend the use of Radmin in new areas.