The last example, where the code called within a block is shown to its right, is something that I've often tried to do statically, manually when first trying to

The last example, where the code called within a block is shown to its right, is something that I've often tried to do statically, manually when first trying to learn a large code base. I would want this for that alone. The fact that what's shown is live-ish is a big, diabetic coma-inducing glob of icing on the cake.