So far, in version 5.1 we implemented mass connection properties editing.
In order to mass edit connections, select them by dragging the mouse pointer around them or using <Ctrl> or <Shift> + click, and then right click and select Properties just as you do when edit a single connection.
Thanks for the kind words. :) We will add knowledge base articles that describe issues with other software, especially popular programs, like TuneUp Utilities. People must know that sometimes it's a third-party application that blocks normal operation of RUT.
Thanks for the kind words. 8) We are going to release the version 5.1 soon. This one will have some major improvements, so stay tuned. I would recommend you subscribing to our product newsletter, the subscription form is available on the home page. This way you will get notified about the new version when it is out.
P.S. "Soon" here means "within a 1-1.5 month timeframe".
2. RDP has nothing to do with RUT's performance. You can check it for yourself if you use the generic RDP client instead of RUT-Viewer. As for the remote feature, you probably meant 'Full control' or 'View only' mode. Try to reduce the color depth a little bit, and use the 'Economode'. You will find both these settings in the 'Properties' for the connection in the RUT-Viewer.
BTW, I would recommend you upgrading to the v.5.0. :) Apart from new features, such as the Internet ID, there were numerous little fixes that were made in the version 5.0.