Thanks to @PedjaS, who had the idea, version 6.4 comes with an additional and alternative much smaller GUI for those of you with limited monitor space ;-) It looks somewhat like the original DirectShow settings dialog as you may know from clicking "Configure video" in OBS. Clicking the button on the lower right brings you back to the big GUI.
V6 is a major redesign. Married local and webserver into one new app with integrated web server - new Version 6 will combine controlling the camera locally using the app's sliders, and remotely on a browser on another machine. Interfaces are the same. Click on the "run webserver" button, see the URL change color to blue, click on it to start browser. Better handling of driver issues and AUTO-settings.
Command line is available
locally to load a previously saved profile
on the browser to set features in the url