Instruction making rant

[Jaco van der Molen]

...but isn't it true that what's actually being stored is the view up until that point—in other words, everything before you start to add hovering parts?

I have absolutely no idea. I've never fully understood how it works.
The way I describe it is my interpretation.

Only recently I discovered the usage of other letters the A for a buffer (see my showcase model for the Telehandler)

So I guess you can put it the way you say too. No clue however.
Maybe someone can enlighten us?