Great suggestions! Agree with all of them.

I'd add to this the ability to resize or reposition the radial on the screen. And to provide a visualization that allows for a survey scan of all radials at once. For example, each radial might have an associated color or number/name.

Then instead showing the next/last radial to either side taking up most of the screen, we might have a quick selection of all the radials in a row at the bottom of the screen. Selected radial could raise/lift from there and enlarge when selected, but the idea is to have positions that we can lock/re-order and to have that be easy to parse at a glance.

Here I tried to make a very crude example. So imagine the top is what we have currently, the bottom something more like what I'd want. Each penny is a different radial, each could have a different alpha/numeric or color designation and the radial once selected lifts from the view to prime position and enlarges so the icons are easier to read.

[Linked Image from i.ibb.co]

Something like that at any rate. Then the trick is to get the standard Hotbar and the Radial display to match up more coherently, especially if we change the default organization or order, so that switching back and forth between the two views doesn't make it so hard to parse what's going on.