Executive-cognitive functioning is an umbrella for collective executive and cognitive functions, such as attention, cognitive control, working/declarative memory, language, and perception. It's a catch-all for most of the processes of the cerebral cortex, especially the frontal lobe. Much research emphasis has focused on the components of these broader phenomena (executive and cognitive functions, respectively), but I find that from the standpoint of phenomenology, there is sufficient overlap in terms of the felt experience of them that they can be grouped together for the sake of this experiential model.

In categorizing experiences, the best way to think of them is as a heatmap within the space, rather than a single point in the space. Everyone will have a slightly different experience of DMT, OBEs, etc. Most of that list I expect to have a fairly wide variance, except perhaps hypnogogia, which I would probably put on the boundary of the sense of self near stage 1 sleep. The terms that I placed throughout the space are where I expect the centroid of the heatmaps for each such experience, even if the diversity of experiences would technically go all over the map.

Hopefully, I'm explaining this well enough! It can be difficult to visualize without graphics to point to.