Well you can do this if your system is 3D or 2D. Otherwise you have to project the basins and/or the attractors into a lower dimensional space. This is not reshaping, nor is it an invertible operation. You need to know the system to know when this is possible and when it retains some accuracy. In many systems the attractors can’t be separated by projection.
Sounds like a great opportunity for a pull request!
(h) is just a slice of 6D basins. Like plotting basins[1, 1, 1, 1, :, :]. There are no attractors plotted there, because you simply can’t project the attractors into 2D space for this system.
No worries, but what I said above is for your benefit, to spend some time with a textbook or two. It will raise your intuition levels which is the most important thing. Running code is easy, understanding it is the hard part.