I believe I’ve fixed issue #3 too (Cannot re-open SketchUp’s Helix window after minimizing).
The way SketchUp Extension dialogs work by default, when minimized they can become very difficult to find, hidden behind other windows or even offscreen. I’ve updated the SketchUp Helix extension so that when you click on the ‘Helix’ button, the window will un-minimize. Here’s a gif:
I’ll make a post here, and in the Helix Release forum, when these two fixes have been approved and released!
Thanks again for helping us identify and fix the above Helix issues!