It is possible to drag it with the mouse. you just have to click on the edges outside the buttons with the text and outside the icons. But since you are not the first one who has issues with that, I'll improve the handling somewhat with the next version and make the draggable area only at the top as most ppl are used to.

How can I switch to show on/off? I dont need it all the time it occupy a lot of screen

Thanks for making this thread lol