I have a suggestion for the SCI Companion tool. It's a relatively small one but the idea would simply be to have persistence in the app window when it's shut down so that when you start the tool back up, it opens to the size you had set it previously.
So, for example, if the tool was maximized and then shut down, when it is next started up, it will start up in the maximized state.
(I don't know how to do this in C++, so I can't offer much in the way of how to do it. In C# I usually use PersistWindowComponent and opt to write to an XML file instead of the registry because I try to avoid the registry if I can.)