The second one, I am not sure about colour coding like that, just because I have not tried, the trees you will have, however, including sub-trees. I would bet you can get the colour coding too.

First one, no idea how you would go about that, I don’t think it’s possible, but I don’t have the top tab bar, I disabled it since i use the TST sidebar. I remember there was a tab group plugin but it placed the tabs in separate menu items with the menu in the extension area.