I use Radmin also. We have a dynamic list of sites, almost a thousand long, that we connect to whose IP addresses change with somewhat regularity. So I wrote a program to input a text list of connections and create a folder structure grouping connections together, and it writes out a .rpb file readable by viewer 3.0 build 18.104.22.168 and newer. The connection organization is custom to our needs, but I can set it to write the file with the default port of 4899 or make that switchable for that matter. If anyone would like some help with this, let me know. I'd be happy to put the program I wrote out for others' use as long as Famatech has no problem with this.