Suggestion: Add option to hide "New Tab", "Move tabs to the top" and "Shrink sidebar when not in use" buttons

I use the CTRL+T shorcut to open a new tab and the buttons to “Move tabs to the top” and “Shrink sidebar when not in use” would seem to have a better fit in the add-on’s preferences because is not something that I would constantly use.

So, it would be nice if I could hide those buttons.