The various panels of the editor can be navigated using alt+shift+p (previous) and alt+shift+n (next). Both go ring around the rosy, in a never-ending circle. I’m in the editor content region at this point. I’ll be pressing alt+shift+n to navigate the various regions.

Pressing alt+f10 navigates you to the nearest toolbar.

So What are Blocks, anyway?

The thing that makes the block editor so different from the soon-to-be-retired classic editor is that, as the name implies, it’s based on the concept of editing blocks. WordPress has its own core set of these, but different themes and plugins may also have their own blocks. Therefore, what used to be a fairly standardized experience has become a wildly diverse one. It certainly has made teaching WordPress a much more difficult endeavor.

So Just What Are Blocks

Blocks are nothing more than containers, pure and simple. Think of containers like bowls, plates, glasses, cups, pitchers, pots, pans, etc. Containers can also hold various items–both food and nonfood–though some containers are obviously more suited to some items than others. Blocks are similar. Examples are ‘paragraph’, ‘gallery’, ‘quote’, ‘audio’, and ‘image’, among others. Clearly these different blocks will contain different types of content. These blocks can be reordered in a document. Each block can be styled differently, exported, reused, incorporated into templates, etc. This clearly is something the classic editor was never intended to do.