1) Create a checkbox "all connections via the default host" and then you must choose a default host. This will make it easier if you use the same "phone book" on multiple PCs on deferent networks
2) Create a new program (= new money ) which acts as a 4 monitor splitter. You can choose which 4 Radmin connections on display (no borders, just the remote screens side by side). If one clicks on one of the 4 windows, it will go to full screen and mouse & keyboard will be active on the remote PC.